英语语法分析

It is mainly composed of a steel rectangular parallelepiped and two steel cylinders of the same diameter fixed at its two ends.

它主要由一钢制长方体和固定在其两端的两个相同直径的钢制圆柱体组成。

To the short ends of the mobile plate are fixed the parallelepiped by bolts.

对移动板块的短结束被门闩修理平行六面体。

It is made up of two parallelepiped blocks of 10x10 meters placed next to each other.

它是由两个10×10米，且彼此相邻的平行六面体组成。