• Conclusion: Coal tar pitch can result in obvious biomembrane damage of the exposed workers.

    结论煤焦沥青导致接触者生物明显损伤

    youdao

  • Pitch, coal tar, high temp.

    沥青煤焦油高温

    youdao

  • Pitch, coal tar, high temp.

    沥青煤焦油高温

    youdao

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