Rotary voltmeter
[计] 旋转电压表
🧩 词语组成解析
n. 伏特计\\n[化] 伏特计
🗣️ 情景例句
They came and solved the problem.
他们来了并解决了问题。
If you hadn't slipped and fallen,you wouldn't have broken your leg.
如果你没滑倒,你就不会断腿了。
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。