The essence to reach the standard of bacterial concentration was the management systematically.
洁净手术部全面系统地严格管理可以使空气细菌浓度达到标准；
The concentration of SO2 and dust in air is over the national standard enormously.
空气中的烟尘、SO2浓度远远超过了国家标准。
The product could arrive the export standard after concentration.
经浓缩后，可达到出口标准。
The product could arrive the export standard after concentration.
经浓缩后，可达到出口标准。
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