A plastic or rubber mask through which oxygen may be breathed from a storage tank.
oxygen mask 30秒了解
- (noun) A plastic or rubber mask through which oxygen may be breathed from a storage tank.
Meanings
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1
noun A plastic or rubber mask through which oxygen may be breathed from a storage tank.
Summary
A plastic or rubber mask through which oxygen may be breathed from a storage tank.
- (noun) A plastic or rubber mask through which oxygen may be breathed from a storage tank.
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