Method; questionnaire investigation, health test and health education are administrated to staff.
方法对一个学校教职工进行定期的统一问卷调查和健康体检、健康教育；
Confirming test routes is crucial step of driving investigation.
试验线路的确定是行驶工况调查的关键环节。
The test stand prepares the ground for a through investigation into drill pump valves.
试制的实验室用泵阀试验台为深入开展钻井泵泵阀的理论研究创造了条件。
First we carried out the test investigation and study in campus.
首先着手在校园的问卷调查。
First we carried out the test investigation and study in campus.
首先着手在校园的问卷调查。
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