“放气”造句
2024年07月02日 22:29:10
火车进站后, 火车头开始
放气.
After the train got to the station, the engine began to blow off.
杜瓦微漏孔和真空室内部材料
放气使杜瓦真空度下降.
Leakage and outgas of dewar vacuum vessel also is analysed.
注意: 在进入拉削时一定要关闭
放气开关.
Notice: When broaching, make sure that the air escape cock is closed.