cross break

It can describe precisely the cross hole reservoir by using synthetically the kinematic and dynamic features through using travel time and frequency feature of cross hole seismic first break for joint tomographic imaging for seismic velocity of stratum and for Q value.

通过利用井间地震初至波的旅行时及其频率特性进行地层地震速度和岩石Q值的联合层析成像，就可以综合利用地震波的运动学和动力学特征对井间储层进行更精确的描述。

The factor that affect the well lane stability has primarily: Round the rock kind, well lane position, tunnel stalk line direction, cross section size, break rock method etc.

影响井巷稳定性的因素主要有：围岩性质、井巷位置、巷道轴线方向，断面尺寸，破岩方法等。

Warning: cross project links may break if the source andtarget project locations are different. continue?

警告：如果源项目和目标项目的的位置不同，则项目间的交叉链接可能会断开。是否继续？

On the Analysis for the Cross Break of Old Yihe Bridge Pier and Countermeasures

老沂河桥桥墩横向开裂分析与对策

The method of eliminating Q235B hot rolled steel strip cross break defect by changing rolling process is described in this paper.

横折是指热轧板卷开卷过程中，在板卷的某个部位出现垂直于轧向的条状折痕。