The packed tower process not only used for chemical industry, it is also widely used for purifying low concentration industrial waste gases.
填料塔洗涤吸收净化工艺不单应用在化工领域，在低浓度工业废气净化方面也能很好地发挥作用。
This ERM was prepared in super-clean lab with high pure reagents and sub-packed in 20 ml ampoules, No significant differences in concentration among sub-samples were found.
本标准样品采用高纯试剂在超净间中准确配制，分装于20毫升安瓿内，经均匀性检验合格。
This ERM was prepared in super-clean lab with high pure reagents and sub-packed in 20 ml ampoules, No significant differences in concentration among sub-samples were found.
本标准样品采用高纯试剂在超净间中准确配制，分装于20毫升安瓿内，经均匀性检验合格。
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