他们已经发现了两种光活性催化剂，一种用于净化严重污染的水，一种用于净化轻度污染的水。
They have come up with two sorts, one for heavily polluted water and one for water that is only lightly polluted.
由于介质突然暴露在大量的NF3中，使用干燥介质，如活性炭或分子筛的净化过程可能造成温度迅速上升。
Purification processes using dry media, such as activated charcoal (carbon) or molecular sieve, may be subject to rapid exotherms from sudden exposure of the media to large quantities of NF3.
可用活性炭进行净化，除去杂质成分。
Activated carbon used for purification, removal of impurities.
应用推荐