OBJECTIVE: to probe into the current status and trend of the utilization of antimicrobial drugs in our hospital.

目的：了解我院抗微生物药应用现状及趋势。

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Current status and trend of lead-free technology have been reviewed for electronic assembly manufacturing at home and abroad.

论述了国内外电子组装生产中无铅技术的现状及发展趋势。

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Progress on four kinds of purification technology on automobile exhaust was reviewed, and current status and trend of purification on automobile exhaust in China were analyzed.

综述了国内外在汽车尾气污染治理方面四种技术手段的进展情况，针对目前我国汽车尾气污染的现状与发展趋势，进行了分析和展望。

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