单词	piston clearance
释义	piston clearance活塞餘隙機械工程
随便看	negative phase sequence component negative phase sequence component ammeter negative phase sequence component voltmeter negative phase sequence current negative phase sequence impedance negative phase sequence reactance negative phase sequence relay negative phase sequence voltage negative phase squence impedance negative photograph negative photographic negative photo mask negative photoresist negative photoresists negative phototaxis negative phototropism negative picking negative picture negative picture phase negative pion negative pitching moment negative plagiogeotropism negative plasmolysis place negative plate negative platte