• The passenger grabbed for the oxygen mask.

    这个乘客夺取氧气面罩

    youdao

  • Compared different oxygen supply methods, BLB mask was chosen for oxygen supply system of passenger cars on Qingzang railway.

    对比不同的供方法选择blb氧气面罩用于青藏客车供氧。

    youdao

  • Compared different oxygen supply methods, BLB mask was chosen for oxygen supply system of passenger cars on Qingzang railway.

    对比不同的供方法选择blb氧气面罩用于青藏客车供氧。

    youdao

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