Screwjack
螺旋起重机
🗣️ 情景例句
If I marry you, there are going to be some ground rules.
要我嫁给你，有一些基本前提。
The distinction of our product is its light weight.
我们产品的特点就是它很轻。
records only the horizontal component of the wave movement,
记录下来的只是地震波运动中的水平部分，