干流

Building hydro-junctions in the river estuary region has not only the common problems of general hydro-junctions,but also the technical difficulties on the influence of tributaries afflux.

在支流入汇河口地区建设航电枢纽既有一般枢纽普遍存在的共性问题，又有支流入汇对干流壅水顶托的影响，这种影响是一个非线形动力学过程。

Total 40 surface argillaceous sediments were collected along major and branch channels of the Red River for measuring major and trace elements.

本文通过开展红河盆地干流和主要支流40个样品的主要和微量元素地球化学分析。

Based on the wavelet, gray box and autoregression theory, create a time series model to simulate and predict runoff.

依据灰色系统、小波变换和自回归理论，建立了黑河干流出山径流的时间序列分解模型。

To reveal patterns of longitudinal distribution, seasonal variation, and ecological succession in cladocerans communities in the Three Gorges Reservoir, ten sites were used to sample cladoceran communities across a longitudinal gradient from April, 2004 to January, 2005. Nine cladoceran species were collected throughout the year.

中文摘要：为了阐明三峡水库初次蓄水后干流库区枝角类的时空分布规律， 2004年4月至2005年1月，在600余公里干流库区设置10个样点，定性和定量采集枝角类标本。

Jin Shajiang trunk stream can develop the fluvial drop that use to be rice of 2 1 80, trunk stream of river of elegant rice huller can develop drifting fluvial drop to be rice of 2 82 7, the big trunk stream that cross a river can develop the fluvial drop that use to be 2 636 rice.

金沙江干流可开发利用的河流落差为 2 1 80米，雅砻江干流可开发利用的河流落差为 2 82 7米，大渡河干流可开发利用的河流落差为 2 636米。

The study results indicate that the simulation results in Zhangjiashan and the area between Xianyang and Lintong are more reasonable. Layered Continuous Muskingum method is used to rout the flood in mainstream, and the runoff process at Huaxian station is composed of the results of Muskingum and the runoff simulated in interzone.

在渭河下游流域移用秦渡镇控制流域的模型参数来模拟区间的洪水过程；干流洪水演算采用马斯京根分层连续演算法，最后将区间模拟的径流过程和干流径流过程相叠加形成华县站的流量过程。

With development of man-made oases in headstream zone and upper and middle zone of trunk stream zone, the origin water resource system was destroyed. This caused a serial of ecological problem on tobogganing groundwater level, ruining Green Corridor, intensifying land desertification, etc.

源流区和干流上、中游人工绿洲的发展，破坏了原有自然水资源系统，使输往下游的水量不断减少至中断，从而造成塔河干流下游地下水位急剧下降、绿色走廊衰败、土地荒漠化趋势加剧等一系列生态问题。

In fact, the tributary acts as a conditioning reservoir, which is an important factor to sudden flood caused by dam collapse.

在处理洪水演进过程中支流与干流洪水的相互影响时，以前的模型仅将支流流量迭加到干流同时刻的流量上。

Siltation features downstream of a barrage built at the mouth of a tributary is mainly conditional on the alignment of the thalweg of the main river, and is essentially different from that in the main river estuary.

在潮汐河口支流口门上建闸，其闸下淤积面貌主要取决于干流主槽的位置，这与在潮汐河口干流上建闸的闸下淤积问题有着本质上的差异。

The calculation result shows that the total SWRET in the Yellow River Basin is 31.637 billion cubic meter, and the SWRET in various water resources divisions are difference. SWRETs in some divisions, such as Longyangxia to Lanchow, Longmen to Sanmenxia and lower reach of Yellow River are less than zero, it shows that in these divisions, the surface water resources cannot satisfied the minimum eco-environmental water demands.

计算结果表明黄河流域总的地表水资源开发利用阈值为316.37×108 m3，且区域上分布不均，部分分区如龙羊峡——兰州干流区间、龙门——三门峡干流区间及黄河下游地表水资源开发利用阈值为负值，表明当地自产的地表水资源量不足以满足河道最小生态环境需水量。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。