The coating surface must not have the fat, the dust dirty and the loose material, the newly built wall needs fully bone dry.

需上漆的表面要无油脂、尘污和松散物质，新建的墙壁需充分干透。

youdao

Product characteristics: compared with the natural stone material , high hardness, resistance to corrosion resistant dirty oil.

产品特点：份量轻、硬度高、 耐油耐脏耐腐蚀。

youdao

It is Mainly used for pulp material inspissation washing and dirty mud dehydration, which is in four areas, namely gravity dehydration, wedge re-pressure dehydration.

主要用于浆料浓缩洗涤及污泥脱水，其脱水分四个区，即重力脱水区、楔形预压脱水区、回旋脱水区、剪切脱水区。

youdao

But the acquisition of radioactive material for a so-called 'dirty bomb,' which is radioactive material that is dispersed with a conventional explosive device, that is not that challenging.

VOA: standard.2009.05.01