Also know factory safety fire control well , often organize safe education at the regular intervals, safety-check and safety manoeuver to live.
对工厂安全消防设备系统也熟悉，时常定期组织安全教育，安全检查和安全演习活动。
Check valves are used in a wide variety of oil and gas industry applications as control or safety devices.
单向阀在油气工业中广泛地用作控制装置或安全装置。
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