Air supply apparatus is the important component of the respirator, which provides air and oxygen mixture to respirator.
供气装置是呼吸机的重要组成部分，为呼吸机提供空气氧气的混合气体。
Air supply apparatus is the important component of the respirator, which provides air and oxygen mixture to respirator.
供气装置是呼吸机的重要组成部分，为呼吸机提供空气氧气的混合气体。
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