河床质,Bed material
1)Bed material河床质
英文短句/例句
1.As the sampler is dragged along the bed, it collects a sample from the top layer of bed material.取样器沿河底拖动，收取表层河床质。
2.Bed material samplers, as first developed, may be divided into three types.最初的河床质取样器有三种类型。
3.Distribution of sediment diameter of bed load at the fluctuating backwater reach of Liujiaxia Reservoir刘家峡水库变动回水区河床质泥沙粒径分布
4.a machine to remove material from a channel or riverbed.从水沟或河床中移动物质的机器。
5.GEOLOGICAL CHARACTERISTICS OF THE CAIJIAYING LEAD ZINC (GOLD SILVER) DEPOSIT IN HEBEI PROVINCE河北蔡家营铅锌(金银)矿床地质特征
6.Research on Wave Induced Silty Soil Liquefaction in Yellow River Estuary;波浪导致黄河口粉质海床土液化研究
7.Discussion on the Meaning of the Bed Load Discharge Measured by Sampler in the Sandy Bed of Natural Rivers天然河流沙质河床上器测推移质输沙率含义的商榷
8.Experimental Study on Streambed Structures and Bed Load Transport in an Incised Stream河床结构对推移质运动及下切河流影响的试验研究
9.Use a trowel to collect about 1kg of sediment from the bottom of the stream.利用一个小铲,收集大约1000克的河床物质样本。
10.Construction of Low Capped Pile Foundation in Muddy River Bed by the Method of Steel Case with Bottom有底钢套箱法施工淤泥质河床中的低桩承台
11.The geological characteristics and genesis of Yan Cong Qiao Zi gold deposit ,Meihekou City梅河口市烟囱桥子金矿床地质特征及成因探讨
12.Geological Characteristics of the Jinjiazhuang Au-deposit, Zhangjiakou, Hebei河北省张家口地区金家庄金矿床地质特征
13.Determination of Bed Load Transport Rate of Gravel Bed by Simulation of Flume Experiment用水槽模拟试验求卵石河床推移质输沙率
14.Analysis on the Ore-controlling Factors and the Geological Feature of Shihu Gold Deposits in Hebei Province;河北省石湖金矿矿床地质特征及控矿因素分析
15.Geological Characteristics of A Certain Gold Deposit in Henan Province and Its Ore-prospecting Orientation;河南省某金矿床地质特征及找矿方向研究
16.Geological Characteristic and Oringin of Mo Deposit in Huojihe Heilongjiang Province黑龙江省霍吉河钼矿床地质特征及成因
17.Geological Character and Genesis of Sanhe Gold Deposit,Luanchuan County,Henan Province河南栾川三合金矿地质特征及矿床成因研究
18.Geological Characteristics and Genesis of Wachapo Bauxite Deposit,Henan Province河南陕县瓦碴坡铝土矿床地质特征及成因探讨
相关短句/例句
streambed substrate河床底质
1.Field experiment on the effect ofstreambed substrate on macroinvertebrate diversity;河床底质对大型底栖动物多样性影响的野外试验
3)sandy bed river砂质河床
1.Channel pattern discrimination forsandy bed rivers and gravelly bed rivers;砂质河床与砾石河床的河型判别研究
4)rock bed石质河床
5)sand riverbed沙质河床
1.Firstly, the computational methods aboutsand riverbed ultimate erosion depth at down reaches of dams are briefly introduced.本文首先对枢纽下游沙质河床清水冲刷极限冲深计算的各种方法进行了概述,接着通过沙质河床恒定流清水冲刷试验和径流过程清水冲刷试验,研究了沙质河床清水冲刷条件下河床调整过程及推移质输沙率变化规律,并就径流过程对沙质河床清水冲刷的影响进行了探讨。
6)porous riverbed多孔质河床
延伸阅读
河床河床riverbed河谷中平水期水流所占据的谷底部分。又称河槽。河床横剖面呈一低洼的槽形。纵剖面，在山区较陡，深槽与浅滩交替，多跌水、瀑布；平原区坡度较缓，微有起伏。平面形态：山区河床多狭窄顺直，岸线因山嘴突出而呈犬牙交错；平原区河床多弯曲或分汊。河床纵剖面是从河源到河口的河床最低点的连线。该纵剖面的发展，受河流侵蚀基准面的控制。河流的下切面是无止境的，往往受某一基面控制，河流下切到接近这一平面后即失去侵蚀能力，不再向下侵蚀，这一平面称为河流侵蚀基准面。影响河床纵剖面发展的因素有气候、构造、岩性及环境变迁等。河床河床的类型一般可分为4类：①顺直微弯型，河段顺直略有弯曲、深槽、浅滩交错分布。②弯曲型，具有曲折的外形和蜿蜒蠕动的动态特性，分布很广，任意两相邻浅滩的间距约为河宽的5～7倍。③分汊型，又称江心洲型河床，具有一个或几个江心洲，河身呈莲藕状，具两股以上的汊道，汊道交替消长。④游荡型，河身顺直宽浅，沙滩众多，汊道交织，河床变形迅速，主槽摆动不定，水流散乱。河床在水流作用下形成河床侵蚀地貌和堆积地貌。侵蚀地貌主要有深槽、壶穴、岩槛、深切曲流。当水流侵蚀能力增强，该段河床就被冲刷成深槽。在构造破碎带，节理发育与被湍急水流冲磨成的深穴称壶穴。可深达6～7米。横亘于河床底部上凸的坚硬岩石组成的坡坎称岩槛，常伴有瀑布或跌水。由于地壳抬升，深切到基岩之中的曲流称深切曲流。河床堆积地貌主要有河床展宽期间堆积的浅滩；布于岸边的边滩；布于河心的心滩，枯水位时露出水面，中水位以上出露的称江心洲。沿岸长条延伸的沙滩称沙嘴。边滩经生长，发育成河漫滩。河漫滩上随着动力作用的变化而发育多种类型的微地貌。（见河漫滩）
