central transmissionmain drivemain gearmain transmission gear主: host传动装置: transmission; gearbox; geari ...传动装置；传动；啮合: gearing泵传动装置: pump drive assembly传动装置: transmission; gearbox; gearing; actuator; arranger; running gear; driving system; transmission gear; driving device; driving unit; gear-drive equipment下载手机词典可随时随地查词查翻译
