self closing device

常見例句

Door shall become self-closing on interruption of signal to release device.
儅釋放裝置信號(hào)中斷時(shí)自動(dòng)關(guān)閉。
gigabase.org
Doors of engine casing and stair casing on main deck are of fire doors with self-closing device.
主甲板機(jī)艙棚圍壁和梯道環(huán)圍等処安裝的門爲(wèi)帶閉門器的防火門。
When the partition is running, the wicket is always at closing state for the guarantee of self-lock device. So, there will be no accident when the wicket is suddenly opened.
屏風(fēng)在運(yùn)行中，有自鎖裝置的保護(hù)，小門始終処在關(guān)閉狀態(tài)，這樣就不會(huì)因小門扇的突然張開而帶來意外。