It is frustrating now because we are stagnating at a terrible air quality level.
现在的情况很令人沮丧，因为我们停滞在一个很糟糕的空气质量中。
Ensure maintenance of electric power, air compressors, air conditioner, buildings on high quality level.
维护配电系统、空压机、空调系统、建筑物等确保其维持要求的高质量状态。
Ensures maintenance of electric power, air compressors, air conditioner, buildings on high quality level.
维护配电系统、空压机、空调系统、建筑物等确保其维持要求的高质量状态。
Each pollution index can reach the air environment quality level-2 standard (GB3095 -1996).
各污染指标可满足环境空气质量(GB3095—1996)中二级标准。
Each pollution index can reach the air environment quality level-2 standard (GB3095 -1996).
各污染指标可满足环境空气质量(GB3095—1996)中二级标准。
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