While hair can easily mask half or more of one’s face, one’s face can be ‘completely’ masked – by heavy make-up (and even elaborate plastic surgery)!
同时，头发可以简单容易的遮住一个人一半或者更多的脸，有些人的脸可以“完全地”被遮住-就是那种浓妆艳抹（甚至可以去经心设计的整形外科医生那里）！
While hair can easily mask half or more of one's face, one's face can be 'completely' masked - by heavy make-up (and even elaborate plastic surgery)!
同时，头发可以简单容易的遮住一个人一半或者更多的脸，有些人的脸可以“完全地”被遮住-就是那种浓妆艳抹(甚至可以去经心设计的整形外科医生那里)！
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。
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。
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