• 聚积颗粒非常氧化铅容易被抖因此释放出来后人吸入或是人体吸收

    The lead plates collect a layer of very fine lead oxide that is often simply shaken off, freeing it to be inhaled or otherwise absorbed into the body.

    youdao

  • 聚积颗粒非常氧化铅容易被抖因此释放出来后人吸入或是人体吸收

    The lead plates collect a layer of very fine lead oxide that is often simply shaken off, freeing it to be inhaled or otherwise absorbed into the body.

    youdao

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