Those demonstrated that the formed-model in this paper can basically interpret the process for the high lead slag smelting in blast furnace.
上述工作表明，本文所建立的鼓风炉还原熔炼模型能够较好的描述鼓风炉熔炼高铅渣的过程。
The few lead content is beneficial in the precious metal cyaniding, but the high lead content in the gold concentrate roasting-cyaniding is harmful.
少量的铅含量在贵金属的氰化提金工艺中是有益的，但铅含量过高在金精矿的焙烧—氰化提金过程中是有害的。
Objective: To investigate the blood lead level of 2~7years old children in Dalian and identify the related factors of high lead level. to provide scientific date for preventing lead poisoning .
目的：调查大连市城区2～7岁儿童血铅水平现状及其影响因素，为防治铅中毒提供依据。
At two high lead-exposure factories, the Chinese New Year break provided a chance to investigate the effect of such short breaks on the workers' blood lead levels.
针对两个高铅暴露工厂，因年假停工，借此了解短时间停止作业，对员工血铅的影响。
At two high lead-exposure factories, the Chinese New Year break provided a chance to investigate the effect of such short breaks on the workers' blood lead levels.
针对两个高铅暴露工厂，因年假停工，借此了解短时间停止作业，对员工血铅的影响。
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