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患者在机上是否需要氧气设备？
Does patient need OXYGEN equipment in flight?
youdao
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他们携带了食物、医疗器具和氧气设备。
They loaded themselves with food, medical supplies and oxygen equipment.
youdao
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氧枪是氧气预吹转炉的重要设备。
Oxygen lance is important for BOF.
youdao
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氧枪是氧气预吹转炉的重要设备。
Oxygen lance is important for BOF.
youdao