1) Low velocity layer
低速层
1.
We analyse amplitude-depth curve and propagation characteristics of Lovewave in cross-borehole low velocity layer.
本文研究了井间低速层Love型导波的振幅-深度曲线及传播特征。
2.
The analysis shows that the formation and occurrence of strong earthquakes in North China are closely related with several structural feature: deep fault in crust, the low velocity layer in the middle and lower crust;difference .
研究表明,地壳深部断裂、中下地壳低速层、速度结构的差异、泊松比和岩性的不同、复杂的壳幔过渡带、滑脱构造等构造特征与华北地区强震形成和发生有较为密切的关系。
3.
(1)the thickness of the crust is thinner than that of the stations around;(2)the velocity in low velocity layer of S wav.
结合以前得到的邢台、唐山震区及其附近 5个台站的速度结构 ,发现强震区具有以下几个大致相同的构造特征 ,即 :(1 )地壳厚度低于周围台站 ;(2 ) S波低速层速度低于周围地区 ,高低速层差异大 ;(3 )具有较低的上地幔 S波速度 ;(4)强震往往发生在低速层上面的高速层内或高低速层交界面上 ;(5 )易震层往往是两个低速层夹持的高速层等 ,并对这种结构易于发震的机理给出了分析。
2) low-velocity layer
低速层
1.
According to the results of analyzing low-velocity layer in the mid-crust (v_p≤6.
根据中地壳低速层(vP≤6。
2.
The analysis of the spatial distribution characters and attitudes of high-conductance layer,low-velocity layer and heat flow value anomaly respectively and their corresponding relationship proves that the electricity and velocity fabrics of lower crust in Qinghai-Tibet plateau are characterized by the vertical layering and horizontal dispersing.
青藏高原及周边地区下地壳普遍发育电性高导层、波速低速层和热流密度值异常区。
3.
Studies show that it is the tectonic superposition of the crust caused by the collision of terranes that results in the development of the low-velocity layers in the crust of most terranes.
对高原多数地体的地壳中存在的低速层进行了研究,表明低速层的形成主要来自地体碰撞时,地壳的推覆叠置,使部分高原浅部上地壳的中酸性成分地层进入中下地壳的位置,仍为长英质岩性成分,尚未跨越固相点进入部分熔融状态。
3) low velocity zone
低速层
1.
The geothermal anomaly, low velocity zone and high conductivity layer in crust, and frequent occurrence of strong earthquakes show that the study area is an active area of modern tectonization.
地热异常、地壳内存在低速层和高导层、强烈地震频繁发生等现象说明，这一地区是现代构造运动的活动区。
4) low velocity and low resistivity zone
低速低阻层
5) low interval velosity
低层速度
6) ultra-low velocity zone(ULVZ)
超低速层
补充资料：低速炸药
分子式：
分子量：
CAS号：
性质：见炸药。
分子量：
CAS号：
性质：见炸药。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条