On December 20-21, 2007, the “New Technology Seminar on Propellant Medicine†was held in Yangzhou, Jiangsu Province. This was a special academic seminar jointly organized by the Propellant Medicine Professional Committee of the Explosives Professional Committee and Nanjing University of
Read moreOn December 20-21, 2007, the “New Technology Seminar on Propellant Medicine†was held in Yangzhou, Jiangsu Province. This was a special academic seminar jointly organized by the Propellant Medicine Professional Committee of the Explosives Professional Committee and Nanjing University of
Read moreAlthough dairy cows have cold and heat-resistance habits, due to cold early spring and dry climate, poor feeding and management, combined with scarcity of green fodder, can easily result in decreased milk production and even affect the normal growth and development of dairy cows. The author believ
Read moreã€Summary】: The heat exchanger is an essential equipment for the water injection system. The structure and heat transfer effect of the heat exchanger are directly related to the long-term and healthy development of the injection manufacturer. SECESPOL-B se
Read moreIn the current downturn of the pork market, the majority of farmers want to use the least amount of feed to make the pig grow the most meat, thereby increasing revenue. At present, although reasonable matching of feeds and effective prevention of diseases have been taken seriously by most farmers,
Read moreIn July, the amount of rainfall in corn leaf blight was positively related to the incidence of leaf blight. When the diseased plant rate reached 70%, the diseased leaf rate began to develop from the bottom up; the rainfall was early and the diseased plant rate rose early. Otherwise it is late. Whe
Read moreFirst, pond construction. Freshwater lobsters like to inhabit the water environment with a fresh water and rich oxygen. The construction ponds should be chosen where there is good ventilation, abundant water sources, no sources of pollution, and convenient drainage and drainage. The depth of the p
Read moreWang Tianjiao is a kind of economic crop with large planting area in the vegetable production area in south-central of our province. It has large planting area in Dingzhou, Jizhe, Quzhou and other places. It is an efficient and economical way for vegetable growers to adjust planting structure and
Read more1. Scrubbing: Scrubbing is the first procedure to participate in the work. Scrubbing methods are high-pressure water washing or brush machine washing and manual brushing. Before washing, the American ginseng should be immersed in water for 10-30 minutes, and then the mud should be brushed off. Gene
Read moreElectronic tension machine purchase The electronic universal testing machine is an indispensable instrument for the flexible packaging industry and the film industry. By using the test for tensile strength, peel strength, puncture strength, tear strength and elongatio
Read more1. Choose fruit that has been certified by a national specialized agency or certificate of origin, pollution-free fruit, green fruit, and organic fruit. These fruits that have been certified by state agencies are strictly controlled in accordance with relevant requirements during production manage
Read moreFirst, choose the eggs as much as possible to use the production of eggs within two weeks, and remove double yellow eggs and misshapen eggs. After selection, use 30°C warm water and add 0.1% potassium permanganate solution to soak the eggs for 3 minutes, remove them and dry them to incubate. S
Read more