Objective To provide the appropriate dust control measures for jade carving operations.

目的提供玉石雕刻行业适宜的防尘技术措施。

youdao

The hygienic evaluation on effectiveness of ventilation and dust control measures for the 18 iron mines has been made in this paper.

对18家大中型井下铁矿通风防尘技术措施效果进行了卫生学评价。

youdao

With the similar dust control measures and length of exposure to dust, the main reason of causing different coal mine incidence of pneumoconiosis was the different coalfield geology factors.

在防尘措施、接尘工龄基本相同的情况下，造成煤矿尘肺发病差异的原因主要是煤田地质因素不同。

youdao

Some parts of the new regulations simply reiterate rules that were already in place -- such as requirements for dust-control measures at construction sites -- but have been poorly implemented because the environmental authorities have lacked clout.

CNN: Beijing tries to clean up its act