Methods The elastic echelon formation work form was performed.
方法采用梯队式弹性工作方法。
2
A battalion commander Li Guangshun rate a business as a positive main attack along the roads to begin to pass forward echelonform.
一营长李光顺率一营担任正面主攻，沿公路以梯队形式展开向关口推进。
3
The distribution of gas is controlled by depression and intervals gas-producing. The most abundant gas is accumulated in local structures on anticlinal belts in echelonform.