Anti dust

Author points out that intensifying management of ventilation, fire prevention and dust prevention is fundamental assurance of security production.

通过对孟南庄煤矿瓦斯爆炸事故原因的分析 ,总结出“一通三防”在煤矿安全生产中的重要性 ,指出只有抓好安全 ,加强现场通风、防尘、防火等管理 ,才能确保煤矿安全生

According to the air-defense project for both war and peace time in north area the design of ventilation system is discussed from four aspects: ventilation in water and transition period,dust prevention and noise control,which has a certain reference value for similar designers engaged in relevant area.

就北方地区一般用途的人防平战结合工程通风系统的设计 ,从供暖期及过渡季通风、排风口位置、防尘除尘、噪声控制四方面 ,提出了几点看法 ,以解决工程中遇到的环境问题。

A smock worn to protect one's clothing from dust.

防尘衣一种防尘保护衣服的罩衫

BUSHINGS SEATED IN BOOTS

坐落在防尘套中的轴瓦

Bushings Installed In Boots

安装在防尘套中的轴瓦

They shut out the dust by having double windows.

他们用双层窗户防尘。

Dust-sheets were draped over the furniture.

家具上盖着防尘布.

filter for dust respirators

防尘口罩用过滤材料

BALL JOINT SEAL BOOT

球形接头密封防尘套

technique of industrial venti1ation and dustproofing

工业通风与防尘技术

single-use dust mask

只用一次的防尘面罩

Mr Jones: shockproof, rustproof, dustproof, and unbreakable.

琼斯先生：防震，防锈，防尘并且摔不坏。

Dust and fog protected under sealed condition, IP44.

独特的密封式设计，防尘、雾，防护等级IP44。

Knowledge in waterproof， dust proof and sealing.

具有防水、防尘和密封方面的知识。

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

Investigation on dustproof consciousness of dust exposed personnel in five quarries

5家采石场粉尘作业人员防尘意识调查

Analysis of General Dustproof Effect and Pneumoconiosis Morbidity of Two Coal Mine in Northern Anhui

皖北2煤矿综合防尘效果与尘肺发病情况分析

Analysis of Whole Class Works Individual Workers Respirable Dust Monitoring and Dust-proof Countermeasures

全工班个体呼吸性粉尘监测及防尘对策研究

Stainless Steel test cocks include dust covers to protect the threads from dirt, dust and insects.

不锈钢测试旋塞包括防尘盖，防止螺纹被泥土、尘和昆虫污染。

Dust proof performance-Test method for buses

GB/T12478-1990客车防尘密封性试验方法