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- toxic and harmful element 有毒、有害元素
- This paper describes the toxicity and harm of hydrogen arsenide. 这篇文章介绍了砷化氢的毒性及危害性。
- All dairy products must be tested Pipi melamine, and other toxic and harmful substances. 所有的乳制品，必须批批检验三聚氰胺等有毒有害物质。
- Large amount of toxic and harmful gases such as hydrocarbon, carbon dioxide, hydrogen sulphide, etc. will he released druing mining process. 在采煤过程中释放出大量烃类、二氧化碳、硫化氢等有毒有害气体。
- The reaction of organic nitrogen compounds in wastewater with chlorine will form toxic and harmful organic chloramines during the chlorination. 在氯消毒过程中,污水中的含氮有机物与氯反应会生成有毒有害的有机氯胺。
- Objective: To survey the security of Shantou sea-mussel as food, toxic and harmful substances in Shantou sea-mussel were analyzed by spot check. 摘要目的：通过对汕头贻贝中有毒有害物质的抽样调查，了解其食用安全性。
- Monitor and analysis methods of toxic and harmful gases were introduced in aromatic combining plant. Some problems ablut the methods were discussed constructively. 介绍了芳烃联合装置中有毒有害气体监测分析方法,对分析方法中的问题进行了建设性讨论。
- The toxic and harmful gas released during spon ta neous combustion of mining waste will cause serious pollu-tion harm fulness to human health,living environment and social stability. 煤矸石自燃释放的有毒有害气体,对矸石山周围的人体健康,生存环境,社会稳定等均造成严重的污染危害。
- With respect to electric and electronic products which may pollute environment in dismounting and disposal, toxic and harmful substances prohibited by the State shall not be used in design. 对在拆解和处置过程中可能造成环境污染的电器电子等产品，不得设计使用国家禁止使用的有毒有害物质。
- the virulent and harmful element harm 有毒有害
- The toxic and side reaction of catheterize chem... 尺动脉化疗组毒副反应相对轻。
- heavy metals and harmful elements residues 重金属及有害元素
- Titanium was the most harmful element to the machinability. 随流孕育对缸体材质的稳定达标起到了保证作用；
- It's a very effected, less toxic and better tolerated drug. 这药非常有效,毒性小,且耐受性好。
- Drugs can have both beneficial and harmful effects on athletes. 药物存在益和有害两方面作用。
- The liquor is toxic and volatile, so we must wear masks. 这酒有毒又易挥发，因此我们必须戴着口罩。
- Dichlorvos and trichlorfon are middle toxic and high active. 敌敌畏、敌百虫系中毒高效农药,仍保持着旺盛的市场前景。
- Immoderate international tax competition is vicious and harmful. 过度的国际税收竞争是有害的、恶性的。
- Increases the precision and harm done with a firearm. 增加火器射击的精确度和伤害。
- To label people as “traumatized” creates stigma and harm. 给生还者贴上“精神受创”的标签可能会带来耻感和伤害。
