为此，加强防尘措施，降低环境矿尘浓度，可能对减少该矿肺癌发病具有重要意义。
Therefore, further measures for individual prevention and reduction of mine dust concentration in the air were considered to be necessary for reducing the incidence of lung cancer.
该厂自1965年采用防尘措施以来，粉尘浓度有了显著降低，测尘点合格率遂年增多。
Since the factory took measures to prevent dust in 1965, the ust concentration has been reduced greatly.
在防尘措施、接尘工龄基本相同的情况下，造成煤矿尘肺发病差异的原因主要是煤田地质因素不同。
With the similar dust control measures and length of exposure to dust, the main reason of causing different coal mine incidence of pneumoconiosis was the different coalfield geology factors.
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