是的，螺旋桨转动效率很强。

Yes, turning effect of propeller very strong.

youdao

津田说，太阳反射器变换姿态每天大约只有一度，而且转动越快效率越差。

The sail can only change its attitude by about 1 degree per day, Tsuda says, and it gets less effective the faster the sail spins.

youdao

与渐开线齿轮泵相比，圆弧齿轮泵的特点是：体积小、无脉动、转动平稳、效率高、噪声低以及寿命长等。

Comparing with involute gear pumps, circular tooth gear pumps have following characteristics: compact structure, no pulsation, stable rotation, high efficiency, low noise, and long working life.

youdao