河道

This paper provides analyses and discussion of ice jam stages with variation in ice discharge and initial flow depth and velocity in straight and curved channels based on the data from the experiment and the field observations at the Hequ gauge station of the Yellow River.

依据实验室资料和黄河河曲段的实测资料，针对直道和弯槽，对比分析了不同冰流量、不同初始水深和流速时模拟冰塞和天然河道冰期水位的变化规律。

Basing on the ice jam flood of Heilongjiang River and disaster in history records,the ice jam flood situ- ation,hydrological and river way characteristic are proposed in this paper,the cause of ice jam flood and develop- ment of forecasting are analyzed,the ice jam flood disaster and protect methods are introduced.

根据历年冰坝凌汛及灾害调查资料和观测成果，综述了黑龙江上游历年冰坝凌汛发生情况，冰坝河段水文气象特征和河道特性，分析了冰坝成因研究和预报方法的进展，并阐述了冰坝凌汛灾害和防治措施。

Ice dam, ice cover and ice jam, which are formed by stack, jammed and collective ice, can increase river resistance and water stage, resulting in flood, construction damage and navigation problems.

冰块堆积，堵塞和聚集形成的冰坝、冰盖和冰塞会导致河道阻力增加，致使上游水位上涨，并可能造成冰期洪水，建筑物破坏，航运不畅等危害。

A method for estimating channel cell cross-section size based on the DEM and the remote sensing imagines of the basin is also proposed, which solves the inapplicability of physically based distributed hydrological model in many basins.

流溪河模型还提出了一整套基于DEM及遥感影像对流域进行单元划分及对河道单元断面尺寸进行估算的方法，解决了目前在大部分流域不能应用分布式物理水文模型的难题。

In application of Guanyinge-Shengwo cascadereservoir, the results show that the model parameters of interval flood concentration andchannel progression model should be calibrated simultaneously, so that the negative value,indention shape and their error occurred in back-analysis interval concentration process ofcasacade reservoir could be avoided reasonably.

在观音阁—葠窝水库的应用结果表明，对反推梯级水库区间汇流过程存在的负值、锯齿状和误差等问题，可采用区间洪水汇流和河道演进模型参数统一率定的方法解决。

On the basis of summarizing the calculating methods of minimum instreaming ecological flow at home and abroad, the improved wetted perimeter method is adopted to determine minimum instreaming ecological flow of upper reaches of Hangjiang River.

在探讨总结国内外计算河道内最小生态流量(minimum instream ecological flow)方法的基础上，针对汉江流域的实际情况，选用改进湿周法对汉江上游石泉、安康和白河3个水文断面的最小生态流量进行定量估算。

Little is known about the reproductive habits; may interbreed with L. oculatus in the Apalachicola River drainage.

小繁殖的习惯而闻名，可能会与在阿巴拉契柯拉河道排水· oculatus 杂交。

Under the condition of intermit flood, the shallow groundwaters in different distances from riverway appear marked spatiotemporal dynamic changing rules and different responds.

在丧失河水对河道两侧地下水补给功能的前提下，距河岸不同距离的浅层地下水表现出不同的动态变化特征，并且在间歇性通水时发生不同响应变化。

In combination with the geological features of the ga wells in West Sichuan, such as multi-payzone high pressure gradients and a large lithological change in channel sand bodies, etc., the casing cementing and perforation completion were adopted for the main well and branch holes in the well group and the interzonal pressure seals of the main well and branch holes, and the separate well fracturing and producing were all realized through a completion string with dual-tubing and dual-packer.

结合川西地区气井多产层、高压力梯度、河道砂体岩性变化大等地质特点，该井组主井眼和分支井眼均采用套管固井、射孔完成，通过双油管和双封隔器的完井管柱实现了主井眼和分支井眼的层间压力分隔和分井压裂、分井采气。

Troy Stewart and his 10-year-old daughter were on their daily bike ride about 7:45 p.m. Monday when Stewart, 31, suggested they jump off a 15 foot bridge. Stewart held his daughter Meagan Stewart's hand as they jumped off the bridge into the Intracoastal Waterway, authorities said.

周一晚上7点45分，特洛伊·斯图尔特和10岁的女儿正在进行每天的骑自行车运动。31岁的斯图尔特建议女儿和他一起从一座15英尺高的桥上跳下去，后来斯图尔特举起女儿麦奇的手，二人一起跳进了桥下的河道中。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。