| 释义 |
direct arrival
基本例句
直达波
The test example shows that there is sonic interference such asdirect arrival, ghost wave and respective water column reverberation in sea bottom pressure c.算例表明:海底压强分量及垂直分量中有直达波、鬼波以及各自的水柱混响等声波干扰,这两种分量上的声波干扰反相,便于压制。
Basically, the cross-well seismic data processing has two steps: traveltime velocity inversion tomography fordirect arrivaland seismic reflection stack image.井间地震资料的处理主要包括两个最基本的内容，即直达波旅行时速度反演层析成像和地震反射波叠加成像。
Digital absolute shaft encoder provides the accurate car positioning,with which the high efficientdirect arrivalbeing got,base on distance principle,as well as the perfect comfort ability and leveling accuracy.运用绝对值编码器，按距离原则的高效直接停靠，实现了超乎寻常的舒适感和平层精确度。 |