英语词典
This paper describes the toxicity and harm of hydrogen arsenide.
介绍了砷化氢的毒性及危害性.
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Hydrogen arsenide released unavoidably during electrowinning with copper electrolyte purified conventionally pollutes the environment seriously.
传统的铜电解后液净化方法电积时不可避免地析出砷化氢,严重污染环境.
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