Teach you a comprehensive understanding of office paper (I) - office paper, office paper - Paper Industry

China Suppliers


A lot of work in the office of some friends in frequent contact with office paper, such as printing paper, cardboard playing, fax paper, etc., which may be unexpected office of a friend spent a month in buying such companies Paper The cost is very high, especially as the company's administrative staff, how to buy the paper for different documents and control needs a good budget, I am afraid that the amount of information in the paper shortage is difficult to have a better choice, and today I will be fully to the origins of modern office paper used to analyze, so that administrators can better choose you.





Early Western Han period, China will appear on paper, to the Eastern Han Dynasty (3rd century AD), Cai Lun of the Papermaking Technique is improved, the use of paper will be gradually increased. So on paper what is it? According to "The People's Republic of China national standard (GB4687-84) provides that paper is from the suspension will plant fiber, mineral fiber, animal fiber, chemical fiber, or mixtures of these fibers forming deposited to the appropriate device, made from dried smooth, uniform thin pages.
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Today, paper applications has been extended to culture and science, life, health, commercial, defense and industrial and agricultural production and other fields. Below, we introduce the commonly used office paper. It can be said of all office paper products Office Supplies In a neglected, it is not valued by everyone. Yes, it is not much equipment, devices, is relatively cheap, seems to be ignored, but as with much more frequently used, it is our day to day office is essential. Now the market a wide range of office paper products, such as: labels, Carbon , Playing cardboard, copy paper, printing paper, photo paper, fax paper, ... ..., the brand is also very diverse, of variable quality. How to find the most suitable mix arowana your paper then? The ancients made: "a short step, without which thousands of miles; not small streams converge into a Jianghai ... ...", how to accumulate and add up what? Hope that the following description helpful to you.





Copy paper printing paper with a comprehensive test trick


In our daily office paper supplies, use the most is the copy paper office paper and printing paper, while the most common size is A3 and A4. Currently, the market copy paper, printing paper brands many, many brand-name products, such as: Epson, East Port, Guanhao, red flagship, HP, Canon, gold flagship, Golden Globe, Golden Days chapter, Kodak, green day chapter flagship, Xerox, Ssangyong, days chapter, Prince, small steel shot, as the price difference between them is not particularly large, you can brand their own printer or copier to select printing paper, if there is better compatibility, that Print and copy would be better.





Copy paper Copy paper Although the office of every day and copy paper, printing paper, but have a lot of office staff awareness of the paper is still very shallow, the following paper describes a more comprehensive range of performance and impact in their daily office work, in When purchased, you can refer to the following performance parameters, there will be of great help. In particular for printing paper and copy paper, reference to the following points can be purchase.





Tensile strength: tensile strength refers to the paper or Cardboard Endure the tension. Usually expressed in absolute tensile strength: that a certain tensile specimen width (Newton); or breaking long said: that a certain width of the paper in its own gravity will pull paper off the paper required length (m ); or horizontal section, said the anti-tension; that is the cross section of sample units of anti-tension (N / m 2), said. The higher the intensity, the more difficult pulled the bad paper. Such as printing paper with a long report, forms, put them on the wall, if the paper's high tensile, then the report or form is not easy to break, the time will be longer intact.





Elongation: elongation of paper or cardboard is subject to certain post-tension. To the breaking elongation when the percentage of the original specimen length. Elongation is a measure of strength and toughness of the paper is an important indicator. Elongation is associated with the tensile strength. The higher elongation, flexibility of paper stronger, not easily pulled off the paper, with the rubber bands that are similar. If the elongation rate is too low, in the careless use of a paper can be able to break, both for office work or from the economic terms, have adverse effects.

60 years to create a development road with Chinese characteristics, mechanization of agriculture - farm machinery, agricultural machinery - Machinery Industry

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New China Agricultural machinery In the 60 years of history, overcame various difficulties setbacks, exploring the way forward, innovation, has made many achievements and historical progress, build a line with China's national conditions and development of agricultural mechanization system of agricultural mechanization entered the intermediate stage of development, creating a road with Chinese characteristics and development of agricultural mechanization.





Reviewed 60 years of agricultural mechanization development in general has gone through four stages of development. 1949 to 1980, administrative promotion phase. Country's social conditions, team set up stations and agricultural investment, agricultural tools to support mass reform movement, increased agricultural research, education, identification of the promotion, maintenance and supply system inputs, basically found everywhere, and more robust support of security system. 1981 ~ "Eighth Five-Year" period, system transformation stage. With the deepening of economic reform, market development in the role of agricultural mechanization gradually increase the control of the farm machinery industry, increasing deregulation plan, farmers and business investment has gradually become the main agricultural machinery, agricultural machinery diversified forms of coexistence. "Ninth Five-Year" Early to 2003, market-oriented phase. In 1996, the State ministries and commissions began to organize large-scale wheat Kuaqujishou service, combines efficiency and greatly improved operational efficiency and achieve our country's small-scale agricultural production units with large scale production of agricultural machinery, mechanization of agriculture with Chinese characteristics development path shape. Since 2004, to promote stage. Introduced in 2004, "Agricultural Mechanization Promotion Law", 2004 -2009 No. 1 in the central documents explicitly put forward the request to accelerate agricultural mechanization and measures. Purchase subsidies on agricultural mechanization and pulling effect in the agricultural machinery industry, agricultural machinery industry entered the best period in history.
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60 years, mechanization of agriculture has made remarkable achievements in promoting agricultural efficiency and rural incomes and the rural economy has made an outstanding contribution to sustainable development.





From the founding date, China's agricultural equipment level and the level of agricultural mechanization development in leaps and bounds. As of the end of 2008, the national gross agricultural machinery reached 822 million kilowatts, is 80,100 kilowatts in 1949 to 10,000 times the average annual growth rate of 16.95%; per hectare of agricultural land has power 6.75 kilowatts; tractor holdings 20,219,100 units, 1949 117 units of 17.3 times the average annual growth rate of 22.68%. High-performance, high-power field operations machinery and ancillary equipment grew rapidly, especially in large and medium tractors, semi-feed-type rice combine harvester, rice transplanter, harvester, and conservation tillage equipment in the holdings have greatly increased. The level of agricultural mechanization entered the intermediate stage of development, by the end of 2008, the national farm income levels reached 50.8% mechanized. Major food crops in the rapid development of mechanization, the field of agricultural operations also by food crops to cash crops, the field of agriculture to agriculture, the planting to the breeding industry, the comprehensive development of agricultural products, from production to the prenatal and postnatal extension. Agricultural standardization work has been raised markedly, set harvest, tillage, planting in one duplex operation expanding the scope of mechanization, agricultural rush in the harvest and plant crops ability to further enhance overall agricultural production capacity.





, The state actively to promote agricultural mechanization technology innovation, through the tools of reform, the implementation of national research, national science and technology support programs, agricultural science and technology across the program, introduce international advanced agricultural technology (948) projects, increased agricultural machinery and equipment related Key Technology and equipment research and development and support efforts to promote agricultural mechanization part of the "bottleneck" link technology and technology integration to solve the problem. Agricultural machinery industry by transforming operational mechanisms, deepen the reform of the agricultural production from the weak to become the world's largest producer of agricultural machinery historic leap, support the rapid development of China's agricultural mechanization. National farm machinery manufacturing enterprises by the end of 2008 about 8000, above-scale enterprises reached 2021, 191.5 billion yuan industrial output value of agricultural machinery, is the reform and opening up in 1980 (103.7 million) of 18.5 times. China's agricultural areas are also open to further expand the successful introduction, digestion and absorption of foreign advanced rice, corn, sugar cane and other crop production machinery and water-saving agriculture, conservation tillage techniques for improving China's agricultural mechanization level. At present, China's agricultural products not only meet the needs of the domestic market, but also in the international market also showed a clear competitive advantage.





With the vigorous development of agricultural industry, large agricultural machinery, agricultural machinery Cooperation Social, agricultural professional associations, shares (cooperative) system, agricultural machinery operators, agricultural agents and other new agricultural social service organizations continue to emerge and grow. As of the end of 2008, the national service organization operating various types of farm machinery reached 165,600, the total number of agricultural households has reached 38.33 million, Agricultural Mechanization intermediary service organizations 6022. Agricultural development along the field of social services, showing organizational forms and service of the market, professional services, investment diversification and a significant feature. Agricultural operations order service Lease Service, contract service and cross-regional operation, group contracting, service practices, agricultural production and farmers meet the urgent need to promote the rapid development of market-oriented agricultural service. In 2008, the National Agricultural Mechanization Service operating income reached 346.65 billion yuan, become an important channel for farmers to increase income and new highlights.

Gangrenous mastitis in dairy cows treatment - aquaculture industry

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The disease mostly occurs in a few days after delivery, the formation of a large area of breast tissue necrosis, leading to sepsis caused by severe systemic symptoms, is a high mortality rate of mastitis.





One cause 1, pathogenic bacteria: E. coli is mainly, but Staphylococcus aureus, anaerobic bacteria, pyogenic bacteria, Bacillus, Clostridium spp, Actinobacillus spp, Listeria genus Bovine Brucellosis can also cause infection is so.
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2, Route of infection: bacteria invade the breast have three ways, namely milk path, source path of blood, lymphatic source path. Generally believed that bacteria invade the breast through the nipple tube is the most important ways; but suffer enteritis, peritonitis, traumatic Web diseases such as gastritis and puerperal fever, the bacteria with the blood is transported to the breast, can also cause hair by breeding disease; When the occurrence of breast or nipple skin wounds, scratches and other injuries, the bacteria enter the lymph through lymphatic site of injury, the subcutaneous tissue along the lymphatic invasion, and finally against the breast tissue.





3, the main factors for infection: less hair, the blood supply more high-yielding cow breasts, sagging breasts or severe swelling is severe postpartum breast are very susceptible to this disease.





II symptoms Especially acute in the case of sudden loss of appetite or waste must, body temperature rose to more than 4l , hunched over hard back, stand up difficulties, shortness of breath, increased pulse rate, body hair against the legislation, muscle tremors, ruminant stop, diarrhea and dehydration, all breast swelling, often to the hind legs from hypogastrium swelling. The formation of the breast skin, or pale purple color part of the round, with cool sense of lesions in other parts of redness and hot feeling. By anaerobic bacteria infection, breast subcutaneous emphysema, milking out of gas when the can was infected breast pain intense, and some breast skin ulceration caused by drainage and necrotic tissue. Milk yield declined rapidly in early disease was water-like milk, blood or pus samples were after, some have a strong odor of corruption.





3, diagnosis Analysis based on the cause, breast examinations, breast milk bacteriology laboratory test results for diagnosis.





4, control Feeding and management should be strengthened first of all, careful nursing cows, a lot of grass to the cows mattress shop, and always stood up for to prevent the occurrence of bedsores. Second, many eyes will be taping a plastic tube with one end tied to the breast, the other end of the cold water in the cooling water pipe irrigation breast, this approach also results than smear anti-inflammatory agent.





In treatment, should be intravenous or intramuscular antibiotics or sulfa preparations, until systemic symptoms disappeared, to prevent sepsis; to improve the symptoms of dehydration, with the compound sodium chloride injection, saline solution , glucose and vitamins for infusion; according to symptoms of injectable adrenal cortex hormones; in the early stages, can be external pudendal artery injection of antibiotics, usually penicillin 1.6 million IU, 40 ml water for injection, diluted once injected, 2 times a day ; from the nipple into the drug; condition is serious, as appropriate, a time before all the housing distribution or breast surgery, cured beef cattle used as a high yield of valuable breeding cows can only be used to do.