The selection of main reagents and screening agents has been introduced for measuring the calcium fluoride in fluorite by EDTA volumetric method.

介绍ED TA容量法测定萤石中氟化钙时所使用的主要试剂、掩蔽剂等的选择。

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Methods The optimal mutation breeding method was established through the screening of mutating agents and mutation conditions.

方法通过诱变剂和诱变条件的考察，确定最佳选育手段，从而筛选到效价高、 组分好的优良生产菌株。

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In this paper, we reviewed the new advances of research of target-based screening for anti-biofilm agents in recent years.

本文主要就近几年抑制生物薄膜形成的靶点筛选作一介绍。

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Mineta has put forward a proposal that would put the federal government in charge of security screening, but would not necessarily make all workers doing the screening federal agents, according to a senior Republican aide.

CNN: White House offers compromise for airport security

According to information obtained by CNN from a senior Republican aide, Mineta offered a new proposal that would put the federal government in charge of security screening but would not necessarily make all workers doing the screening federal agents.

CNN: Senate stalled on airline security measure

Recently, there have been disturbing press accounts indicating the CIA is considering new screening criteria for recruiting foreign agents.

CENTERFORSECURITYPOLICY: Secret intelligence, the nation's first line of defense