It is energy saving and dust-proof.
具有防尘节能，高度保洁功能。
Content, Species, fill Power, Oxygen, Turbidity, Net fill weight, Thread count, Down proof, Dust Evaluation.
含量，种类，填充物蓬松度，耗氧指数，填充物净重量，服装面料支数，防钻绒性，灰尘鉴定。
It improves dust effect and working environment. It provides assure for explosion proof coal dust.
极大地改善工作面的灭尘效果，改善劳动环境，为防。
The design and application situation about HZ type dust proof airtight cover is introduced.
简要介绍了HZ型防尘密闭罩的研究设计和工程应用情况。
Knowledge in waterproof, dust proof and sealing.
具有防水、防尘和密封方面的知识。
For example, "defend radiation", "anti-electrostatic", "high abrasion proof", "suction dust" etc. function.
例如，“防辐射”、“防静电”、“高耐磨”、“吸尘”等功能。
The front of the beam expansion system is also provided with a dust proof mirror.
在其扩束系统前面还设有一个防尘镜。
With good water and dust proof functions;
具有良好的防尘、防水等性能；
With good water and dust proof functions;
具有良好的防尘、防水等性能；
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