在含水型金属加工液中微生物的污染会严重影响加工液的性能和加工操作，并且危害工人的健康。
The microbiological contamination has influenced severely the performance and operation of metal processing fluids. And it is harmful to workers' health when it contains water.
在含水型金属加工液中微生物的污染会严重影响加工液的性能和加工操作，并且危害工人的健康。
The microbiological contamination has influenced severely the performance and operation of metal processing fluids. And it is harmful to workers' health when it contains water.
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