equal travel time

基本解釋

Common focus point(CFP) migration based on the equal travel-time principle is a kind of pre-stack depth migration method through focusing in both emission and detection.
共聚焦點(diǎn)（CFP）偏移是基於等時(shí)原理，通過(guò)激發(fā)聚焦和檢波聚焦的雙聚焦實(shí)現(xiàn)曡前深度偏移的地震成像方法。
The method follows the principle of travel time being equal to determine the velocity of horizons and takes optimized imaging quality as judge standard of velocity correctness.
該方法根據(jù)旅行時(shí)相等原理確定地層速度，以成像質(zhì)量最優(yōu)作爲(wèi)速度正確性的判別標(biāo)準(zhǔn)。

At the start, at least, these other parents seem like nice enough people, but as time goes on and travel leagues get formed, the social dynamic can turn into something equal to the age level of the children playing.
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