以下为句子列表：
英文: Based on this view, this paper analyzes the suitability of protective respirators to human body, and systematically puts forward such ergonomic problems as seal, respiratory resistance, dead space and field of vision about protective respirators at the an
中文: 笔者从人体的面部形态与生理机能角度，分析了呼吸防护用品与人体的适配性，系统提出密合性、呼吸阻力、死腔、视野等呼吸防护用品的人机工效学问题。
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英文: Test method for the dead space of filtering particle respirator.
中文: 过滤式防微粒口罩死腔的试验方法.
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英文: The alveola arterial oxygen gradient[P(A a)DO, p(A a,DO)], oxygenation ratio(PaO/FiO,pa,O / FI0)and alveolar dead space fraction(Vd / Vt) were calculated .
中文: RFN组,p(A-a,DO)升高,Vd/Vt增大,pa,O/FI0降低,且呈持续状态,术后8h时和基础水平相比,差异仍具显著性。
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