We used mice as material and studied the effects of poison of chromium and, the effects of protection of different concentrations of L-cysteine. We explored the fittest dose rate too.
本文以小白鼠为材料，研究了铬的毒害作用及不同浓度l -半胱氨酸的保护作用，探求最适剂量比。
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Zinc acts as negative material of batteries, with the advantages of low equilibrium potential, good reversibility, high specific energy, rich resources, low cost, little poison and easy treatment.
Research in textile production, spinning and weaving and its poison in the ware, harmful material comes from the fiber raw material and process primarily medicine or help.