The effects of the feed ratio of raw materials, reaction temperature and the dosage of catalyst, etc factors on the new synthesis process of brominated epoxy resin for copper clad panel were studied.
研究了原料配比、反应温度、催化剂等因素对覆铜板专用溴化环氧树脂合成新工艺的影响。
Animals ingest vanadium from air and feed resources, while the moderate level of vanadium is in favor of the growth of animals, but excessive dosage could have toxic effects on the health of animals.
动物可以通过空气和饲料原料来获取钒，适量的钒有利于动物的生长，但是过量就会对机体产生毒性作用。
Animals ingest vanadium from air and feed resources, while the moderate level of vanadium is in favor of the growth of animals, but excessive dosage could have toxic effects on the health of animals.
动物可以通过空气和饲料原料来获取钒，适量的钒有利于动物的生长，但是过量就会对机体产生毒性作用。
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