To begin with, imposing such measures in major cities can help alleviate air pollution and thus promote a cleaner environment.
首先， 在大城市执行此类政策有助于减轻空气污染， 并有助于营造更加清洁的环境。
Because the air doesn't contact with the liquid layer, the conductive air venous infusion apparatus can prevent and alleviate the pollution of infusion liquid due to insoluble particles in it.
导气式静脉输液器因空气不与液体层接触，在减轻空气中不溶性微粒对输入液的污染方面有着显著效果。
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