雪種喉計內徑or外徑?
回答 (2)
2011-11-09 7:00 am
所有喉類計數時都係以內徑計, 設計時先考慮流量, 所以用內徑.
2011-11-08 7:25 pm
幫你係雅虎search過，唔知道以下網址幫不幫到您，應該有您想要的東西http://hk.search.yahoo.com/search;_ylt=Axt7wJ_GPHxOIkAAIEuzygt.?p=%E5%85%A8%E7%90%83%E6%9C%8D%E9%A3%BE%E6%89%B9%E7%99%BC%E7%B6%B2-%E6%B8%AF%E8%B2%A8%E5%BB%A0%E5%AE%B6%E6%89%B9%E7%99%BC%E8%B2%A8%E6%BA%90%EF%BC%8C%E6%99%82%E8%A3%9D%E6%89%B9%E7%99%BC%E8%B2%A8%E6%BA%90&fr2=sb-top&fr=FP-tab-web-t&rd=r1
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收錄日期: 2021-04-23 21:42:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111108000051KK00216