Even if we wore double gauze masks while searching, our nostrils were very black as they were filled with dust.
即使我们在翻找的时候罩了两层纱布，鼻孔里还是吸满了黑黑的灰。
Dust cover and seal with double protection, isolated pollution.
采用防尘盖和密封圈双重保护，隔绝污染。
"It seems good, but we'll double-check in 20 minutes.There's too much dust now," answers an officer.
“初步看起来不错，但20分钟内我们将进行再次确认，现在现场有太多扬起的灰尘，”一位军官回答。
The rugged construction is double-sealed to prevent water and dust ingress even during site wiring.
坚固的建筑是双重密封，以防止水和灰尘进入即使在现场布线。
Fully sealed: with cover and pole double seal design to prevent leakage of electrolysis. and the reliability of safe-valve prevent oxygen and dust from outside enter into the battery.
采用电池槽盖、极柱双重密封设计，防止漏液，可靠的安全阀可防止外部空气和尘埃进入电池内部。
Neither oil spillage nor air inclusion during connection and disconnection, is suitable for the harsh environment of high dust, with double security locks to prevent accidental disconnection.
它断开时无遗洒，连接时无空气混入，适合高粉尘的恶劣环境，具有双重安全设置，防止意外断开。
When a flexible negative plate electrode cyclically moves, deposited dust on the plate electrode can be automatically cleaned by a double-face brush.
柔性负电板极在循环运动时，被双面刷子自动清洗板极上的集尘。
Reasons of high efficiency dedusting and no settling dust and no abra-sion at the throat inlet of the system under the condition of no water With the double-Venturi Tube washing process are presented.
介绍了双文清洗工艺中在喉口不供水的情况下系统仍能高效除尘而且喉口不积灰不磨损的原因。
The invention relates to a double-area multi-stage electrostatic precipitator of reverse airflow dust charge, belonging to the technical field of an electric precipitator.
一种逆气流粉尘荷电的双区多段静电除尘器，属于电除尘器技术领域。
The double-layer structure has the thermal insulation effects, also it gives you a special visual effect that the drinks suspends in the air. The lid prevents the dust.
具有保温隔热作用的双层结构，让饮品呈现出悬浮于空中的视觉效果，盖上杯盖，防尘卫生。
The window design contains a double layer of carefully oriented RF mesh screens to provide transparent like views, minimize pattern distortion, and prevent dust and particle buildup.
这些设计包括了双层筛网幕结构，能提供透明般的视野，而且减少了因为晶格光干涉效应造成的图形扭曲，同时避免尘埃在窗户上的聚攒。
The window design contains a double layer of carefully oriented RF mesh screens to provide transparent like views, minimize pattern distortion, and prevent dust and particle buildup.
这些设计包括了双层筛网幕结构，能提供透明般的视野，而且减少了因为晶格光干涉效应造成的图形扭曲，同时避免尘埃在窗户上的聚攒。
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