carnk shaft的用法和樣例：
例句
- As the crankshaft rotates, the crankpin swings in a circle around the shaft.
隨著(zhù)曲軸的轉動(dòng)，曲柄銷(xiāo)繞主軸作圓周擺動(dòng)。 - The former causes forced vibration at the circular frequency of the crank shaft and the latter causes transient vibration at the natural frequency of the press.
慣性力激發(fā)的振動(dòng)是以曲軸轉速為頻率的強迫振動(dòng)，加工力激發(fā)的是以壓機固有頻率為頻率的過(guò)渡振動(dòng)。
