字典網>> 英漢字典>> O開頭詞條>>orifice check valve的意思 漢英字典orifice check valve中文翻譯：【化】 小孔止回閥orifice check valve相關詞條：orifice gas scrubber orifice plate steam trap orifice buffle orifice gas orifice column orifice extraction column orifice control valve orifice orifice-plate flowmeter orifice flow