In order to avoid using very poisonous mercury chloride zinc filament has used iusted of tin dickloride and pollution to environment are reduced and the accuracy of determining results is enhanced.
英
美
释义
即以锌丝代替氯化亚锡,避免了使用剧毒的氯化汞,减少了对人体的危害和对环境的污染,而且提高了测定结果的准确度。
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