英语语法分析

Macrostructural change in coal beds is a common geological phenomenon in many coal fields of China, which greatly affects production and is an urgent structural problem in mines.

煤层中的宏观结构变化是我国众多煤田中普遍存在的地质现象，它对煤矿生产影响极大，是当前煤矿生产中急需解决的地质构造问题。