spring-operated fire damper是什么意思


中文翻译弹簧驱动防火阀

网络释义

1)spring-operated fire damper,弹簧驱动防火阀2)fast-acting spring actuator,(闸阀)快动作弹簧驱动器3)spring driving,弹簧驱动4)driving spring,驱动弹簧5)gate valve with fast-acting spring actuator,弹簧驱动快关闸阀6)transaxle direction spool spring,驱动桥方向滑阀弹簧

用法例句

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