en echelon

Five types of fracture assemblage were summarized from the siltstone of the Tertiary Shahejie Formation in the southern North China basin, i. e., ( 1) conjugated shear fracture belts arranged in en echelon N-S-striking tension fracture;

以南华北盆地户部寨第三系沙河阶组粉砂岩低渗透储层为例，总结了其中发育的5种类型构造裂缝组合，即：①南北向雁形张节理组成的共轭剪节理带；

The basic structural patterns in the region of high temperature hot springs or strong earthquake epicentres comprise left lateral en echelon faults and pull apart basins;

2高温热泉或强震震中区的基本构造样式为走滑断层左行、左阶雁列带和拉分盆地构造；

The ore bodies display parallel en echelon and end-to-end alignment , occurring as a vein zone.

矿体呈脉带状平行侧列、尖灭再现展布.

Longjing Movement is transpressional, and the transpressional structures in Xihu sag are characterized by staggered second-order structure belts, en echelon anticlines and conjugate faults.

龙井运动具压扭特点，西湖凹陷压扭构造特征表现为二级构造带错开排列、背斜构造雁行排列和断层共轭排列。

Stress analysis of the conjugate en& echelon joint system

共轭雁行节理系的应力分析

Its distribution is characterized by multi-segment en echelon distribution, showing characteristics of horizontal twisting motion and thrust motion.

它的展布是以多段雁列排布为其特征的，显示了水平扭动兼有逆冲的运动特点。