... 密闭风路电动机 closed-air-circuit motor 密闭构造 airtight construction 密闭集输流程 closed layout of gathering system ...
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形式：自立型琴式密闭通风构造。主控柜和操作台分设。
Form: Vertical musical instrument type and airtight ventilation structure. The main control cabinet and the operation table are set up separately.
爆炸冲击波作用下人防工程各种管道穿墙板构造部位防护密闭性是否受到破坏，是一个值得深入研究的问题。
The destruction of the defending obturation of all kinds of pipelines through walls and floors in civil air defense engineering under explosion shock waves is currently focused on.
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