平原河流

平原河流浅滩出浅年份灰色预报

Forecast by Grey System for Shoal-appearing Year at Plain River

此类河流浅滩来水来沙条件及演变规律均与一般平原河流浅滩明显不同。

Its conditions of water , sand and evolution is different from those of plain river shoal .

华北平原河流纵剖面

Longitudinal profiles of the streams on the North China Plain

冲积平原河流平面流动的数值模拟

Mathematical modelling of two-dimensional flow in alluvial rivers

河北平原河流沉积物的结构特征

Texture features of river sediment in Hebei Plain

海河流域平原河流生态修复模式研究Ⅱ&应用

Study on eco-restoration modes for rivers on plain of Haihe River Basin ⅱ: application

本章以白城为例，研究了中长期水文预报在平原河流洪水资源利用中的应用。

The paper analyzes the application of long-term runoff forecast in plain flood resource utilization .

冲积平原河流河型稳定性指标分析

A study on stability of alluvial rivers

我国多数平原河流存在十分频繁和严重的洪水灾害现象，此类河道通常由主槽和滩地组成，横断面呈复杂的复式断面形态。

Flood disasters occurred frequently and severely in most plain rivers in China , that are made of floodplains and main channels .

基于此，本文探讨了基于物理因子分析的中长期水文预报方法，并将预报成果用于指导平原河流洪水资源利用工作。

For these reasons , this paper studied on methods of long-term hydrological forecasting based on physics factor analysis and its application in plain flood resource utilization .

本文就松嫩平原河流低水头固定式壅水建筑物的溢流坝、问及其组合建筑物的规模计算、结构设计进行论述，并列举设计实例。

The size determination and structural design are discussed for the fixed low head retaining works such as spillway dam , sluice and its combination in Song-Nen Plain .

本文根据现代河流的已知沉积微环境中的砂样分析，阐述了河北平原河流沉积物的粒度成分、形态和石英颗粒的表面结构特征。

By analysis of sand grain size in sediment microenvironment of modern rivers , the size and shape of grain and surface texture feature of quartz grain were described in this paper .

延长组沉积过程经历了湖盆发育初期的平原河流，中期的湖泊环境，晚期的泛滥平原至湖泊消失三个阶段。

The deposition of Yanchang Formation went through three stages : the plain-river environment in the early development of basin , lake environment in metaphase and flood plain in the last when the lake disappeared .

在分析研究抛石块体稳定重量与水流流速之间关系的基础上，探讨平原河流与山区河流的抛石稳定问题。

Based on the analysis of the relationship between the weight for stability of rock ripraps and flow velocity , a discussion was made on the stability of ripraps in plain rivers and mountainous rivers .

平原河流上筑坝引水灌溉，要遵循河流流势的基本规律，合理布置枢纽的堰、闸、导流墙、进水闸等建筑物。

This paper presents that diversion irrigation building dam on river and stream of plain should follow the natural law of river and stream , and reasonably layout buildings such as weirs , gates , diversion walls , and intake gates etc.

利用模拟实验开展了平原河流的水动力条件、河道宽深比、建筑物遮光效应和水温等因素对水体有机物长期降解过程的影响规律研究。

The relations between the degradation of the organics and factors like hydrodynamic conditions of plains river , ratios of width to depth of river , the effect of light hiding by building , water temperature and so on were studied by simulation experiments .

南方平原地区河流生态环境预警系统研究

A Study on the Early Warning System of River Ecology and Environment

平原细沙河流泥沙模型相似准则及设计方法

Similarity Criteria and Design Methods of Sediment Models for Plain Sand-Bed Rivers

平原多沙河流修建引水枢纽中的一些泥沙问题

Some Sediment Problems of Barrage Diversion Works on Silt Laden Alluvial Rivers

平原地区河流堤坝基础处理之探析

An Analytical study of the Rivers'Dykes and Dam s foundation Treatment in Plain Areas

针对平原细沙河流泥沙这一运动特点，提出了一种模拟平面细沙河流的相似准则和设计方法。

For this , similarity criteria and design methods for plain sand-bed rivers are presented .

在我国，水力成因的粉砂土广泛分布于冲积平原、河流三角洲、沿海平原地区。

In China , the hydraulic causes of silt is widely distributed in the alluvial plains , river deltas , coastal plains .

认为平原细沙河流的泥沙模型设计所遵循的相似准则应包括水流运动相似、推移质运动相似和悬移质运动相似。

The similarity criteria for designing the sediment models for plain sand-bed rivers include similarity of flow , bed load and suspended load .

在平原多沙河流上修建引水枢纽，缺乏较系统完整的经验和指导原则。

In the construction of barrage diversion works on alluvial rivers with heavy sediment load , complete systematic experience and design criteria are still lacking .

在地球的表面有山脉，河谷，高原，山丘，平原，河流，海洋以及海岛。

On the surface of the earth , there are mountains , valleys , plateaus , hills , plains , rivers , oceans and islands .

聚煤最有利的沉积环境是海退形成的滨海平原和河流注入浅水海湾形成的三角洲平原。

The most favourable depositional environment for coal accumulation is the seashore plain formed by regression and the delta plain formed by the entering of rivers into the shallow bay .

在这山谷的平原上河流呈网状，其密有如大理石上的纹。大河小溪上都横跨着鱼梁，它们通常是以木桩栅、网或篮篓作成的。

The rivers and brooks reticulated the broad plains of the valley , as thickly as veins in marble . Across the rivers great and small stretched the fish weirs , usually made of stakes and nets or basketwork .

在地下水补给源减少与大规模超采地下水的综合作用下，造成平原区河流干涸、地下水水位持续下降、含水层疏干及地面沉降等环境地质问题。

The reduction of groundwater supply and large amount of extra-exploration of groundwater includes many environmental and geological problems such as river drying in plain area , continual decline of groundwater level , dredge of aquifer , land subsidence and so on .

总结得出，在渐新世JAZMIN油田处于冲积平原，以河流相发育为主要特征。

The conclusion is that JAZMIN oilfield is in an alluvial plain with the main characteristics of river development .

连绵起伏数英里的平原，被河流浇灌得十分肥沃

Miles of rolling plain , made fertile by the river