英语语法分析

This is the beginning of longwall mining.

这是长壁开采的开始。

The new technique increases the efficiency of longwall panel mining.

这种新技术提高了长壁盘区采矿的效率。

Their reliable, compact design make them the outstanding choice for powering hydraulic longwall equipment.

他们以其简洁，可靠的设计跻身于液压长臂开采行业的领先地位。