| 1. | Normally the shear velocity is about half of the compressional velocity .
一般地说横波速度大约是纵波速度的一半。 |
| 2. | There are two kinds of elastic waves in solids a compressional wave and a transverse wave .
在固体中有两类弹性波，一类是压缩波，另一类是横波。 |
| 3. | Compressional dilatational wave
压缩膨胀波 |
| 4. | Centered compressional wave
有心压缩波 |
| 5. | The compressional stress mainly comes from sw , and the ne direction acts as a resistance
挤压应力主要来自南西方向、北东方向起阻挡作用。 |
| 6. | Therefore , liupanshan area during late triassic to mid - jurassic is not a compressional orogen
故六盘山地区在晚三叠世-中侏罗世并不是一收缩造山带。 |
| 7. | So it can be concluded that there did not exsit regional compressional folded - uplifted area which was eroded widely in mesozoic in the west neighouring district
这表明中生代在盆地西邻不存在广泛遭受剥蚀的区域挤压褶皱隆起区。 |
| 8. | Structure characteristics show that helan mountain was in extensional environment in late triassic and no obvious compressional evidence in early - mid jurassic
构造特征分析表明，在晚三叠世贺兰山地区处于拉张环境，早中侏罗世构造环境亦无明显挤压迹象。 |
| 9. | The general structure of the basin is marked by the tectonic framework of compressional ramp of the east kunlun mountains and the qilian mountains toward and subsidence of the central part of the basin
盆地的总体结构表现为东昆仑山和祁连山相向向盆地挤压对冲，盆地中部沉降的构造格局。 |
| 10. | The geochemical signatures show that the volcanic rocks in the jingzhushan formation were formed in the island - arc environment as crustal thickening - melting products in a compressional tectonic setting
地球化学特征表明，竟柱山组火山岩形成于岛弧构造环境，是挤压背景下地壳增厚熔融的产物。 |
