| 释义 |
half mask
释义
潜水面镜：潜水面镜是潜水装备的一种，可以让潜水员清楚地看到水底的东西。
例句
1·A half mask covered his eyes.
半面具遮住他的双眼。
2·Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask , half mask or a mouthpiece assembly - Requirements, testing, marking.
呼吸保护装置。与全罩式面罩、半罩式面罩或口罩一起使用的压缩空气导管呼吸装置。要求、试验和标志。
3·Depending on the chemical or biological agents in the environment, a half mask may not be sufficient because the eyes are very sensitive to chemicals and offer an easy entry point for bacteria.
因为眼睛对化学品很敏感且很容易成为细菌的入口，所以半面罩可能无法充分防护，这取决于环境中化生毒剂种类和含量。
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