downgoing
英
美
网络 俯冲,下行的; 下行的
双语例句
- Solve the downgoing resistance of pump plunger based on dimensional analysis
基于量纲分析法求抽油泵柱塞的下行阻力 - Therefore the positive and negative reflection coefficients tend to appear with approximately equal frequency ( taking the case of a downgoing wave only).
因此，正、负反射系数出现的频率基本上是相等的（仅就下行波而言）。 - Upgoing/ downgoing wave image theory in seismic migration can be introduced into magnetotelluric data processing in terms of the phase relation between upgoing and downgoing plane eletromagnetic waves on a reflection interface.
利用平面电磁波的上行波场U和下行波场D在反射面上的相位关系特征，可把地震偏移技术中U／D成像理论引入到MT法数据处理中。 - Phase shift plus interpolation brings good image of 2-D upgoing and downgoing wave fields.
PSPI（相位移加内插）法可以得到二维U／D成像的较好结果。 - Gob of sublevel caving will not cause ground surface downgoing.
崩落法开采形成的空区不会对地表造成沉降危害。空区不用处理，可以任其冒落； - Downgoing waves can be roughly separated out by performing coordinate transformation of Z ( t) and H_S ( t) compo-nents according to the polarization angle of downgoing P-wave that is estimated in vertical plane.
将Z（t）分量和HS（t）分量按在垂直平面内估算的下行P波偏振角进行坐标转换，即可实现下行波场的初步分离。 - Starting with dynamic analysis of pump concrete, this article takes certain projects as example to discuss pipe stoppage, formula of downgoing pipe height-length proportion, and improvement of some existing regulations.
本文结合工程实例，从泵送混凝土动力分析入手，探讨了堵管机理，提出了下行配管高长比例的确定式，对现有规程提出了改进意见。 - Conclusion Using large diameter oil tube and weighting rod can distinctly reduce the downgoing problem of polish rod, can extend effective production time and improve the effectiveness of steam soaking.
结论采用增大油管直径和加重杆技术可明显减少光杆打架现象，延长有效生产时间.提高蒸汽吞吐效果。 - Comparing to other domestic FGD systems, the FGD system of 2 × 300 MW units in Anshun Power Plant has the following features: application of up-to-date double-flow counter flow mist spraying tower with upgoing and downgoing absorption;
安顺电厂2×300MW机组烟气脱硫系统与国内其他烟气脱硫系统相比有如下特点：采用最新型的上行吸收和下行吸收的双流程逆流喷雾塔； - System of coupled equations for upcoming and downgoing waves
波动方程的上行波和下行波的耦合方程组 - Under the condition of reasonable controlling on time of ignition of two level or multilevel spherical charge, the downgoing energy of seismic wave can be improved and the vibration of surface can be reduced.
在合理控制两级或多级球形装药起爆时间条件下，能提高地震波的下传能量，同时减少地表的振动。 - One of the important steps in VSP data processing is to separate upgoing wave from downgoing wave.
上行波和下行波的分离是垂直地震剖面（VSP）资料处理的重要环节之一。 - Study of generalized and downgoing head waves
广义首波和下行首波的实验研究 - Direct downgoing wave in VSP data has strong energy and high signal-noise ratio, which favours the calculation of absorption para-meters.
VSP资料的直达下行波能量强，信噪比高，为求取吸收参数提供了有利条件。 - With the aid of the new convolution operator, the upgoing and downgoing wave fields of any VSP trace other than side trace can be obtained by adopting the wave fields of its two close neighbour traces, so that the accuracy of wave field separation is improved.
对于任意一个VSP记录道（不考虑边道），利用新的褶积算子均可以利用其两边相邻记录道的波场来求出上、下行波场，因而提高了波场分离的精度。 - On the assumption that the medium is horizontally layered, we use one dimen-sional wave equation to derive calculation formula for upgoing and downgoing waves of two adjacent VSP traces.
这种方法在假定地层为水平层状介质的前提下，从一维波动方程出发，导出了相邻两道VSP记录的上行波和下行波计算公式。 - First the paper introduce the IRC theory in 1-D medium, deduced electromagnetic reflection function of MT that represented by ratio between upgoing and downgoing electromagnetic waves;
首先介绍一维介质情况下的IRC理论，导出大地电磁测深电磁波反射函数，此函数由电磁波上行波与下行波的比值表示； - Because of the ray asymmetry of the downgoing and upgoing waves, the velocity analysis, NMO correction and CMP stacking based on the CMP gather cannot be adapted to that of the converted wave ( CCP).
转换波上、下行波的不对称性，使得常规的基于共中心点（CMP）道集的速度分析、正常时差校正和共中心点叠加技术不能适用于转换波。