sympathetic retrogression是什么意思

网络释义

用法例句

The examinational study on the local scour depth of roadbed along river;

沿河路基局部冲刷深度的试验与分析

Research on local scour depth calculation of roadbed along river;

沿河路基局部冲刷深度计算研究

Investigation on characteristics and scour depth of flow in river bend;

河流弯道水流特点与冲刷深度探讨

Estimation method of scouring depth of lower reach of hydro-junction;

枢纽下游河床冲刷深度估算方法

Discussion the scouring depth recommended by "Levee Engineering Design Standard";

对《堤防工程设计规范》推荐冲刷深度公式的探析

Based on this research,the model nearby superposed flow spur and the velocity distribution of spur head flow were built,At last,a theoretical formula of scouring depth around pile permeable spur dike was derived from the models.

针对其区域水流特性及局部冲刷,通过理论分析,并结合试验验证,分析了其局部水头损失机理,得出了正挑桩式丁坝壅水高度的计算公式,建立了坝头水流的叠加模式和坝轴断面的流速分布式,导出了其局部最大冲刷深度的理论计算公式。

Taking Bayin River Crossing as an example,which is only a sechis of Hydraulic Protection Project for Sebei-Xining-Lanzhou Gas Transportation Pipeline,we have calculated the depth of scour in this section by using the scouring empirical formulae that have been widely used in the pipeline engineering.

以"涩宁兰输气管道巴音河穿越段水工保护工程"为实例,采用管道河流穿越工程中广泛应用的冲刷经验公式,对该穿越段的冲刷深度进行计算,通过对比分析各计算结果的合理性与可靠性,提出了符合实际情况的水工保护工程基础埋置深度,为油气输送管道穿越段水工保护工程设计与工程基础埋深的确定提供了技术参考和较可靠的科学依据。

Numerical results show that for fired points in this all sea areall sea bed erosion results in streng thening of wave field; the change of wave parameter increases with erosion depth, the distrbution of peak values of both nea.

数值计算结果表明，海区固定点海底冲刷导致波场强化；波参数增量与冲刷深度有关；海底水质点轨道流速峰值，底摩擦耗散峰值及临界波高值相对水深分布均表明，该海域深水区海底冲刷将减弱，浅水区海底冲刷将加强。

This paper describes the tests for the relative erosion depth under two different testing water depths, with the result that shows that the model scale has not much striking effect on the erosion behavior at front of a breakwater.

根据两种试验水深情况下堤前相对冲刷深度的试验结果,指出模型比尺对堤前冲刷无显著影响。

Local Scour Depth Estimation to the Nearshore Covered Sand Waves Areas

近岸沙波分布区桥墩局部冲刷深度的估算

The groin abutment degradation depth prediction model based on BP neural network

基于BP神经网络的丁坝坝头冲刷深度预测模型

Study on the maximum scour depth of piers of a bridge after reclamation in a hilly,fluvial and macro-tidal estuary

强潮山溪性河口围垦后桥墩最大冲刷深度研究

Fuzzy neural network solution for bridge local scouring depth in the alluvial river bed

桥墩局部冲刷深度模糊神经网络解的初步探讨

The Change of Scouring and Filling Environment after the Construction of Zhangjiabu New Port and the Study of Limit Depth of Scouring

张家埠新港建成后的冲淤变化及平衡时的极限冲刷深度预测

Local scour depth around bridge pier is a very important parameter in design of sea-crossing bridge base.

桥墩周围局部冲刷深度是跨海大桥基础设计的重要参数。

ON THE ENERGY DISSIPATION OF HIGH OVERFLOW DAM WITH FLIP BUCKET AND ESTIMATION OF DOWNSTREAM LOCAL EROSION

关于高坝挑流消能和局部冲刷深度的一个估算方法

Study of Maximum Depth of Scouring in Front of Gu Dong Breakwater of the Yellow River Delta;

黄河三角洲防波堤（孤东海堤）堤前海域最大冲刷深度研究

Theoretical Study on Calculation of Scouring Depth and Backwater Height Associated with Pile Permeable Spur Dike

正挑桩式丁坝壅水特性及其冲刷深度计算模式理论

Numerical analysis of local scour around complex piers for a sea-crossing bridge

某跨海大桥复合桥墩潮流作用下局部冲刷深度的数值分析

These deep impressions were actually carved out by rainwater.

这深沟险壑真是雨水冲刷出来的。

The flood has scored out a deep channel through the valley.

洪水在山谷里冲刷出一条很深的水涧。

A small ravine, especially one cut by a torrent.

冲沟，激流峡谷狭小深谷，尤指由激流冲刷而形成

Mathematic Model for Bedrock Scoured Balance Depth of River Bed under the Action of Left-Right Collision of Water Jet from High Arch Dam

高拱坝挑流水舌左右碰撞作用下河床基岩冲刷平衡深度的数学模型

Understanding of the scour problem has been aided considerably by investigations of scour by jets.

理解冲刷问题在相当大的程度上曾借助于射流冲刷的研究。

Factors Affecting the Deposition Rate of Poised Electro-Brush Plated Nickel Coating

脉冲电刷镀镍中沉积速度的影响因素

A deep, narrow valley or gorge in the earth's surface worn by running water.

沟壑由于河流冲刷而在地球表面形成的深而窄的山谷或峡谷

The broad-shallow and shifting channels in Xinjiang have characteristics of shallow water depth, steep gradients, high flow velocity and easily scoured river bed.

新疆宽浅动床河流水深小、比降大、水流急，河床容易冲刷。