查询词典 erosion

The results of these experiments indicate the increasing trend of rill erosion quantity with slope gradient and flow discharge.

试验结果反映细沟侵蚀量基本随坡度和流量的增加而增加的趋势。

This model introduces a concept of unsaturated sediment transport, reflecting the variation of rill erosion along the distance.

该模型引入了非饱和输沙的概念，能够反映沿程细沟侵蚀的变化规律。

The conclusion of the function of riprap layer is enforce the erosion resistance of slope is set up by the safety factor comparison between natural slope and riprap slope. At last, appraise the bank revetment project in Sima bend by study on incipient velocity of riprap.

通过抛石前后安全系数的对比得出抛石层的主要作用为增强岸坡的抗冲制能力的结论，最后通过对抛石起动流速的研究，对嘶马岸段的抛石护岸工程进行了评价。

Riprap-- Boulders or loose stones placed in a hollowed out culvert area protect soil underneath from erosion, while slowing water flow.

抛石-大石或放置在松散石头掏空涵洞区保护土壤免受侵蚀下，同时减缓水流。

Soil erosion is one of the most serious eco-environment problems in Yangtze River Basin in China.

长江流域，特别是长江中上游地区是我国水土流失的重点地区之一。

Soil erosion is one of the most serious ecoenvironment problems in Yangtze River Basin in China.

长江流域，特别是长江中上游地区是我国水土流失的重点地区之一。

Juma river upper region which is located at the North of Taihang mountain area in Hebei province is one of the most important riverhead conservation areas and belongs to the slight erosion protecting area for its natural frangible entironment.

拒马河上游地区位于河北太行山区北部，是河北省重要的水源涵养地之一，生态环境有着天然的脆弱性，属于轻度侵蚀防护区。

When Sinlaku hit Taiwan during September 12-15, 2008, the extremely torrential rain made Hou-Fong Bridge, located in downstream of Shi-Gang Dam, broken at around 6:50 p.m. on September 14, 2008. In this study, the case was applied to investigate the factors which resulted in the typhoon flood scour disaster and the disaster prevention mechanism, including the general scour of upstream and downstream river banks, the riverhead erosion and constriction scour, the free fall of broad-crested weir effect caused by water-pipe protection engineering, the disaster prevention and response of the bridge care and management unit, and the examination, timing and procedure of bridge block.

中文摘要本研究系以97年9月12日至15日强烈台风辛乐克侵袭台湾期间，所降下的超大豪雨造成位在大甲溪石冈坝下游后丰大桥於9月14日下午6点50分左右发生断桥事件为例，探讨台洪冲刷灾害成因与防灾应变机制，包含上下游河道之一般冲刷、河道向源侵蚀与束缩冲刷及位於桥梁上游约20公尺处之自来水干管保护工所产生宽顶堰跌水效应等影响，并检讨桥梁养护管理单位於断桥发生前防灾应变处置方式及台洪期间之巡查检测、封桥时机与封桥作业流程等等相关因应作为。

A two-dimensional mathematical model of flow and sediment is used to calculate and analyze the erosion of the riverway at Cao'e River Gate after its completed construction.

采用平面二维水流泥沙数学模型对曹娥江大闸建成后闸上河道冲刷情况进行了计算分析。

After operating the method of storing clear water and discharging muddy water in Sanmenxia Reservoir, the main reason for erosion and deposit in riverway is the change of running water level in flood season .

三门峡水库蓄清排浑运行以来，决定潼关以下库区河道冲淤主要是水库运行水位的高低，汛期水库运行水位的高低对潼关高程的升降起着主要的作用，因此汛期潼关高程的变化主要由水库运行水位决定的。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48