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.

 
  • 除進(jìn)風(fēng)口以外,如有漏氣孔隙,應當堵嚴,如貼膠布,塞棉花,貼膠水紙等。
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