The gramophone had been eclipsed by new technology such as the compact disc.激光唱片等新技术使留声机黯然失色。a gramophone record唱片The telephone and the gramophone were contemporary.电话和留声机是同一时代的产物.They danced to an ancient gramophone.他们随...
The invention relates to swing flapper used to kill mosquito and fly.本发明涉及一种用于捕杀蚊蝇的蚊甩子.And theoretical basis is presented to further apply nozzle - flapper valve to two - stage electro - hydraulic servo valve .较快的响应速度;为进...
The current flows into electric motors that drive the wheels.电流流入了驱动车轮的电动机。...wheels crunching over a stony surface.嘎吱嘎吱地驶过石头路面的车轮The engine is cogged to the wheels by the transmission.这个引擎经传动装置被卡榫到轮子.Where the vehicle h...