基本解释[化学]鲍尔环填料英汉例句双语例句First commercially successful third-generation random packing replacing the widely used Pall Ring.第一商业上成功的第三代散堆填料取代广泛使用的鲍尔环。pall ring packing更多例句词组短语短语polypropylene pall ring packing 聚丙烯鲍尔环填料pall ring packing更多词组专业释义化学鲍尔环填料