Insufficient compressor oil and insufficient compressor lubrication When the compressor is in operation, a large amount of refrigerant gas is also taken away while entraining a small portion of the lubricating oil. Short-term shortage of oil in the compressor will cau
Read more[ Agricultural Products Network] Pork price is the wind vane of CPI, and feed price is the main factor determining pork cost. With the white-hot trade war between China and the United States, the soybean import into the Chinese market has been hampered, and the supply of soybean meal, a by-product
Read moreWith the arrival of autumn, the light time is gradually shortened and the temperature difference between day and night is increasing. This period of time is the most likely period for laying hens to get sick. Breeders should pay high attention and attention should be paid to the following points:
Read moreThe reason for the poor sweetness of melon is largely related to the improper management of fertilizer and water. When the nitrogen fertilizer is insufficient, the leaves lack luster, the carbohydrates are made less, the sugar is less synthetically converted; when the phosphate fertilizer is insuf
Read moreThe function of the powder cleaning machine in the flour machine complete equipment is also crucial. The process effect of the powder cleaning machine is determined according to the screening rate of the screening material and the reduction rate of the wheat flour ash. In
Read moreRice is reasonably used for water during the filling and filling period, which can raise roots and keep leaves, ensure smooth filling and increase the 1000-grain weight of the seeds. If the rice is insufficient in the late growth stage, the leaves will be yellowed early, resulting in reduced yield
Read moreWhite hair has always been the symbol of the age line, and we always think that white hair is the symbolic symbol of the elderly. However, in recent years, the trend of rejuvenation of white-haired people has become increasingly apparent. According to incomplete statistics, hair loss and white hai
Read moreKey words Solvent residue; Triplus-RSH; gas phase aims The method develops a solvent residue in a drug by a gas-tight needle headspace, and determines a solvent residue according to different drug dosage forms. For the drugs in the pharmacopoeia that require the determination of solvent residues
Read moreIn the farming operation, the most commonly used product is potassium dihydrogen phosphate, but how much do you know about potassium dihydrogen phosphate? Now that the potassium dihydrogen phosphate is flying all over the market, is it true or false? Let the teacher popularize
Read moreVegetable multifunctional washing machine equipment overview: 1. The washing machine adopts high-pressure bubble cleaning, which can effectively separate the surface of the object to be cleaned, simulate the basic action of manual cleaning and effectively avoid the phenom
Read moreWhen sowing: It is recommended to apply about 10 kg of diammonium and potassium fertilizers, or apply 30-40 kg of corn special fertilizer or controlled release fertilizer to promote the early growth of strong seedlings. Pay attention to the proper dislocation of fertilizers and seeds to avoid dire
Read moreThe intertidal management of straw mushroom has three key points: First, prevent pests from invading. Once found, they should be completely killed in the first time. Second, the prevention and control of disease-causing bacteria can be used in moderation in the intertidal zone, such as spraying hi
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