这台机器人使用伺服机构来精确控制其手臂的运动。

This robot uses a ___servomechanism to precisely control the movement of its arm.

这台精密机床使用伺服机构将操作员的微小控制转化为精确的切削动作。

This precision machine tool uses a ___servomechanism to convert the operator's subtle controls into accurate cutting movements.