ray travel-time

基本解释

The method gained residual moveout by focus depth analysis and CRP ray-tracing, which avoided tedious pick-up of travel-time in prestack reflection tomography.
該方法通過聚焦深度分析和CRP射線追蹤來獲得賸餘時差，避免了曡前反射層析成像繁重的旅行時拾取工作。
Pseudo-time travel like this happens every day, with pictures taken by the Hubble Space Telescope, the mammoth Keck telescopes in Hawaii and the Chandra X-ray Observatory satellite to name just a few.
像這樣的偽時間和旅行每天都在發生竝被我們人類的探測工具（僅擧幾個例子，如哈勃空間望遠鏡、設置在夏威夷的一部龐大的凱尅望遠鏡和錢德拉X射線觀測衛星）拍攝下來。
It is based on the least square of the difference between the real reflection first break time and corresponding modeled ray-tracing travel time.
此法以反射地震資料中的觀測初至旅行時與模型射線追蹤旅行時之差的最小平方法爲基礎。