coarse ore dust 粗矿尘
dust ore [矿物] 粉状矿石 ; [矿业] 粉矿
iron ore dust 铁矿粉尘
Light ore dust 轻矿粉尘
density of ore dust 矿石粉尘浓度
standard uranium ore dust 标准铀矿样粉
rare earth iron ore dust 稀土铁矿尘
dust of sulfide ore 硫化矿尘
dust control at ore-pass 溜井通风除尘
With the iron-ore dust selected for the test, an experimental research was done on the removing effect of such device.
选用铁矿粉尘作为实验粉尘，对喷雾帷幕装置进行了除尘效果实验研究。
The unloaded ore is blended and stockpiled in a vast yard enclosed by fine-mesh screens to stop the dust from blowing towards the nearby city of Vitória.
卸下的矿石堆积在一个巨大的货场上，上面盖着细网幔帐，以避免灰尘吹向附近的维多利亚城市。
The transportation and treatment of dry ore powder will produce dust and pollute the environment.
缺点是干燥矿粉的制备、运输和加工过程中会产生扬尘，造成环境污染。
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