In addition to outside air inlet, where gas leakage pores, it should be blocked strict, such as patching, plug of cotton and paste glue paper.
除进风口以外，如有漏气孔隙，应当堵严，如贴胶布，塞棉花，贴胶水纸等。
In addition to outside air inlet, where gas leakage pores, it should be blocked strict, such as patching, plug of cotton and paste glue paper.
除进风口以外，如有漏气孔隙，应当堵严，如贴胶布，塞棉花，贴胶水纸等。
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