1) correct to
![点击朗读](/dictall/images/read.gif)
准确至;取值至
3) first break picking
![点击朗读](/dictall/images/read.gif)
初至拾取
1.
Analysed are calculating errors caused in depth measurements, first break picking and downhole depth-points surveying.
介绍了VSP计算时间 -深度关系的原理 ,从深度测量、初至拾取、观测系统 3个方面分析了计算误差的来源 ,并提出了在野外采集和处理解释过程中应采取的预防和校正措施。
2.
Rather large errors will be happened usually in conventional method of first break picking.
常规的初至拾取方法存在着较大的误差。
4) first break pickup
![点击朗读](/dictall/images/read.gif)
初至拾取
1.
After both first break pickup and trace gathering are fini-shed, the residual time shifts in common-shot,common-receiver and common offsetdomains can be known respectively by taking the top of high velocity layer as thedatum.
本方法以野外获得的表层调查资料和野外静校正量作为初始条件,经初至拾取、道集分选后,以高速层顶板为基准面,在共炮点、共接收点和共炮检距三个域内分别提取剩余时差,进而对大量的数据体进行统计,利用正交迭代求取出全局最优化的剩余静校正量。
5) Detecting wave fronts
![点击朗读](/dictall/images/read.gif)
波至提取
6) wave-arriving-time detecting
![点击朗读](/dictall/images/read.gif)
波至识取
1.
According to abundance of well-logging data, this text designs a type of method for wave-arriving-time detecting of primary wave and secondary wave of sound wave logging signal, Slippage Windows method,.
本文通过对声波全波列测井信号的数据特征、声波测井数据处理、测井数据解释、数据处理程序编程等资料及大量科研文献研究的基础上,进行了声波全波列测井信号波至识取方法建模、波至识取程序编程、波至识取模型验证和成果展示等方面的研究。
补充资料:至后
【诗文】:
冬至至后日初长,远在剑南思洛阳。青袍白马有何意,
金谷铜驼非故乡。梅花欲开不自觉,棣萼一别永相望。
愁极本凭诗遣兴,诗成吟咏转凄凉。
【注释】:
【出处】:
全唐诗:卷228_63
冬至至后日初长,远在剑南思洛阳。青袍白马有何意,
金谷铜驼非故乡。梅花欲开不自觉,棣萼一别永相望。
愁极本凭诗遣兴,诗成吟咏转凄凉。
【注释】:
【出处】:
全唐诗:卷228_63
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