检查排气活门阀线路 95%
更换排气阀门 5%
https://qc.dianpusou.com/tag/%e4%bd%8e%e9%85%8d%e5%ae%9d%e6%9d%a5%e5%ae%89%e8%a3%85%e9%9b%be%e7%81%af%e6%b5%81%e7%a8%8b
检查排气活门阀线路 95%
更换排气阀门 5%
https://qc.dianpusou.com/tag/%e4%bd%8e%e9%85%8d%e5%ae%9d%e6%9d%a5%e5%ae%89%e8%a3%85%e9%9b%be%e7%81%af%e6%b5%81%e7%a8%8b