These fibers can float in the air and easily get into your respiratory system.

这些纤维能浮在空中，容易陷入你呼吸道系统。

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Host and central air-conditioning system design, according to loading, debugging, maintenance, maintenance costs 30 percent to float downward... 4: central air-conditioning system of water treatment.

中央空调主机及系统的设计、按装、调试、维修、保养费下浮30%…4：中央空调系统的水处理。

youdao

Host and central air-conditioning system design, according to loading, debugging, maintenance, maintenance costs 30 percent to float downward... 4: central air-conditioning system of water treatment.

中央空调主机及系统的设计、按装、调试、维修、保养费下浮30%…4：中央空调系统的水处理。

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