字典網>> 英漢字典>> D開頭詞條>>direct relation的意思 漢英字典direct relation中文翻譯：【電】 直接聯繫 direct relation相關詞條：direct extrusion direct symbol recognition direct-current vacum-tube voltmeter direct-acting engine direct sensory tract direct-drive torquemotor direct expansion system direct liability direct-reading pH meter directly-right recursive