一辆吉普车拖着一股扬尘，朝我疾驰而来。
A jeep trailing a cloud of dust was speeding in my direction.
严禁使用，至少在空气质量差的那几天，会产生扬尘。
二是运动差造成扬尘。
推测颗粒物的主要来源为交通运输和地面扬尘。
It is speculated that particles mainly come from transport and ground dust.
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。
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。
The transportation and treatment of dry ore powder will produce dust and pollute the environment.
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