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Meaning of 密闭门

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mén (Trad.: 密閉門)
airtight door
Example Sentences
1
Protective door is located in a place near the work area, located only a protective closed doors.
2
The auto stainless-steel single door is made of Microcomputer Controlled System with high intellectualization.
3
线
线
Hot dip galvanizing air sealed junction box used in a protective airtight door or temporary plugging outside of war by shock wave direction, junction box should be used in protective cover.