built-in motor

基本解释

Built-in volumetric motor pump ;
內置馬達泵和流量計；
www.ty-cafe.com
The motorized spindle is equipped with a built-in motor, so that "zero transmission" is realized.
電主軸採用了中置式電機，實現了機牀的“零傳動”。
Three face turn billboard but can be driven by a built-in motor MITSUBISHI column rotation, rotation three surface display, making it can only accommodate one ad space into three advertising space!
三麪繙樓頂大字制作廣告牌卻可以憑著內置電機帶動三菱柱轉動，輪換三麪展示，使得原本衹能容納一個樓頂大字制作廣告位的空間變成三個樓頂大字制作廣告位！

Dr Baker reckons that costs can be cut if the launch rocket uses the satellite's guidance computer instead of having its own, and if the satellite's built-in rocket motor is bolstered to do the work now performed by a launch rocket's upper stage.
ECONOMIST: Space