By applying PU treatment, it is dust free and easy to clean. 表面进行了PU处理,具有防污、易清扫的特点。
It is so necessary to research and develop a novel pesticide formulation which is benzene and dust free, as well as safe. 研究开发无苯、无粉尘(DF)、对环境无污染、对人员安全的农药新剂型迫在眉睫。
Objective To study the contents of dust, free silica and metal elements in the lungs of metal and coal miners in autopsy. 目的研究金属矿工与煤工尘肺尸检肺内粉尘、游离二氧化硅及元素的含量。
This conclusion constitutes the theoretical basis for the successful operation of the dust - free breaker. 这个结论构成破碎机无粉尘(DF)运行的重要依据。
Improvement design of the dust - free suction machine 无尘吸砂机的改进设计