1.
filter for dust respirators
防尘口罩用过滤材料
2.
General technical requirements for self-inhalation filtertype dust respirator.
自吸过滤式防尘口罩通用技术条件.
3.
Measurement and Analysis of Nozzle Flow in Respirator Leakage Tester Based on FLUENT
基于FLUENT的防尘口罩泄漏性试验装置喷头流量检测分析
4.
single-use dust mask
只用一次的防尘面罩
5.
A smock worn to protect one's clothing from dust.
防尘衣一种防尘保护衣服的罩衫
6.
mask for protection from dust odors etc., of textile materials (excl. masks with replaceable filters)
口罩,用于防尘或气味等用,纺织材料制（不包括有可更换滤层的）
7.
Selection of Dust Exhaust Hood and Its Application to Dust Prevention of Jade Carving Workplace
吸尘罩的优选及其在玉石雕刻防尘中的应用
8.
Nonlinear finite element analysis of rubber dust cap
汽车传动轴防尘罩的非线性有限元分析
9.
I need to buy a mask because I inhale a lot of dust when riding my scooter.
（我需要买各口罩，因为骑机车时慧吸进很多灰尘。）
10.
Optimization of inlet structure for canopy wet desulfurization and dusting tower by numerical simulation
伞罩型湿式脱硫除尘塔入口结构优化模拟
11.
Test method for the dead space of filtering particle respirator.
过滤式防微粒口罩死腔的试验方法.
12.
So, you're selling designer SARS masks for dogs?
你在卖专给狗戴的防SARS的口罩？
13.
Safety requirement: Hardhats, Safety Glasses, Dust Mask, Face Shield, Ear Muff, and etc.
必须佩戴下列个人防护用品：安全帽、安全眼镜、面罩、防尘面罩、护耳器等.
14.
Safety requlation for dust explosion protection in raw grain loading and unloading system in port
港口散粮装卸系统粉尘防爆安全规程
15.
Training on proper use and limitations, including practice putting the respirator on and wearing it is required.
通过培训了解如何正确使用防毒口罩并认识其限制性，练习按照要求正确佩戴防毒口罩。
16.
A covering worn over the nose and mouth, as by a surgeon or dentist, to prevent infection.
口罩外科医生或牙医佩戴的防止感染的覆盖物
17.
Test method for filter efficiency of filtering particle respirator.
过滤式防微粒口罩过滤效率的试验方法.
18.
Test method for total inward leakage of filtering particle respirator.
过滤式防微粒口罩总透漏率的试验方法.