降低车间空气含尘量不仅能改善劳动条件，而且能减少产品的瑕疵。
To lower the amount of dust in the air in workshop can not only improve he condition of laboring, but also reduce the flaw on the product.
降低车间空气含尘量不仅能改善劳动条件，而且能减少产品的瑕疵。
To lower the amount of dust in the air in workshop can not only improve he condition of laboring, but also reduce the flaw on the product.
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