The cleaning of lead fume by method of pipe-type electrostatic precipitator is described in this paper.

本文介绍了采用管式静电除尘器净化含铅烟气的研完成果。

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The nano-sized clubbed ferric oxide red was prepared by homogeneous precipitation method, using urea as the precipitator introduced by dripping slowly.

以尿素为沉淀剂，采用缓慢滴加方式，用均匀沉淀法制备了纳米棒状氧化铁红。

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The characteristics of the determination method were simple and accurate because it was not needed to add the organic precipitator that would be disturbed the determination.

该方法的特点是不用加入对测定干扰很大的有机物质的沉淀剂，样品测定的背景简单、无干扰。

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