Objective to study and determine the appropriate air flow rate of a positive pressure respiratory protective hood.
目的研究并确定一种正压呼吸防护头罩合适的送风量。
The protective cap or hood covering the spore case of a mossor related plant.
藓帽盖在苔藓或相关植物芽孢体上的保护帽或盖子。
This paper introduces the raw materials, formulation, preparative course and application method about PVA protective film in the range hood of household oil-smoke drawing machine.
介绍了家用抽油烟机油污防护膜的原料、配方、制备过程和使用方法。
In this way, the entire hood forms a protective air bag outside the automobile, even though some air cavity breaks for some reason, other air cavities will not collapse and can keep working.
这样整个车罩就在汽车外面形成了一个保护性气囊。即便某个气腔因某种原因破碎后，其它气腔不会塌陷而能继续工作。
The invention discloses a lifter of a range hood protective shield.
本发明公开了一种抽油烟机防护板升降装置。
The invention discloses a lifter of a range hood protective shield.
本发明公开了一种抽油烟机防护板升降装置。
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