???ְ?װ??ʽ: ??????ѹ???ͻط緽ʽ??????;YFCS ϵ?????ڻ??? 10/30Pa ?? 30/50Pa??????ѹ?????????ӷ?ܽ????ͷ磬???????»ء??????»ء????Ͳ?صȲ?ͬ???ͻط緽ʽ?????????Ӧ?Ը??ֻ??͵İ?װ????
????????: ????????????ʡ???ڰ?װ?ռ?;??????Ƚ? 190mm?????? 447mm??ֻ??Ҫ????ֲ? 250mm ?ĵ????߶Ⱦ???ʵ?????ذ?װ????ʡ?????ռ䣬?ͷų?????Ļ?ռ?߶ȡ?
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