短語(yǔ)詞組短語(yǔ)constant rotational speed 固定轉(zhuǎn)速drive constant -speed 定速敺動(dòng)constant t speed engine 恒速發(fā)動(dòng)機(jī)constant -speed climb 等速上陞constant t speed governor 恒速調(diào)節(jié)器constant operating speed 恒定操作速度constant loading speed 恒加載速率constant corner speed 等角速度 返回 constant speed