河道

Generally has flows automatically the type, the conveyor type, sand pump type three form this is also certainly decides according to river course's concrete environment.

一般有自流式、传送带式、抽沙泵式三种形式当然这也是根据河道的具体环境来定的。

This type of residual oil is mainly distributed in interchannel facies,distal bar and sand flat facies.

该类型的剩余油主要分布于各小层的河道间相和远砂坝砂坪相，须进行油层改造后，方可动用。(2 )注采不完善型。

Based on the deliberate analysis of microfacies, the authors set up the gentle-gradient braided river sedimentary model and the multi-channel and low-sinuosity meandering river sedimentary model, and think that the most favorable reservoir is overriding sand bodies of channel bar and point bar and channel bed sand bodies is sub-favorable reservoir.

在深入细致的微相分析基础上，分别建立了缓坡型辫状河与多河道低弯度曲流河两种沉积模式，认为最有利的储集砂体主要为高能水道心滩和边滩叠置砂体，其次为河床滞留砂体。

Analyze the characters and kinds of the structure and vertical sequence, identify four micro faces which related reservoirs: under water distributary channel, under water crevasse splay, mouth bar and sand sheet.

通过岩心观察对研究区砂体的构造特征和垂向序列特征进行了详细分类，并识别出水下分流河道、水下决口扇、河口坝和席状砂4种主要砂体成因微相。

The quantity, intensity, buffer capacity and rate factor of soil P availability for 11 calcareous soils were measured by chemical and physicochemical methods and the amount of phosphorus uptaken by rye grass was obtained by pot experiment.

徐淮地区位于黄河故道，该地区的石灰性黄潮土主要由黄泛冲积物质发育而成〔，'''。由于黄河泛滥，于河道两岸有规则地分布着沙土、二合土和淤土。土壤中碳酸钙含量因土壤质地而异。

Now by the light that Gelmir held above his head Tuor saw that the river began to go suddenly down a smooth slope into a great tunnel, but beside its rock-hewn course there ran long flights of steps leading on and downward into a deep gloom beyond the beam of the lamp.

此时借着Gelmir高举过头的灯光Tuor看到河流开始突然从平缓的斜坡泻入一条巨大的隧道，然而在它石凿的河道边有着一段段长长的阶梯，一路向下，没入灯光所不能及的深沉黑暗。

Last week, a 3500-kilometer survey along China's Yangtze River failed to turn up a single river dolphin, or baiji.

上周，一名3500多公里的沿线调查中国长江没有挖到一条河道，海豚或者贝吉。

Rapids are created when rivers are on a steep gradient, making the water flow very fast, when the flow is constricted into a narrower channel, or where an obstruction such as a boulder interrupts the river, causing eddies and swirling currents.

当河流的坡度陡斜造成水流变快的时候，当水流被挤入更为狭窄的河道的时候，或是在河流被巨石之类的障碍物阻隔从而引起旋涡和涡流的地方，就会形成急流。

UHMWPE pipe is extensively used of the transportation of all kinds of powder、thick liquid and gas,such as the handing of mine powder 、grain、river course silt,and ash discharging of power plant、utilization of water of sea ang river、drainage of mine well、and the transport of cruel oil and gas,and also in the fields of the convey of chemical raw material and industry"three wastees"etc.

超高分子量聚乙烯管材广泛应用于各种粉体、浆液、气体的输送，如矿粉、粮食、河道泥沙处理、电场排灰，海、河水利用、矿井排水，油品、燃气输送，化工原料及工业&三废&的输送等领域，可代替铁管，钢管，不锈钢管和合金钢管。

The deposition reduction effect in starting works on river dredging and dike strengthenning between Zhujiawuzi and Xihekou in the Lower Yellow River has been studied through river engineering model experiment.

黄河的泥沙淤积是严重制约中下游地区国民经济发展的主要因素。近年来，一些专家提出将挖河疏浚作为解决黄河泥沙问题的措施之一，力图通过挖河减少淤积，增加河道排洪能力，同时，可将挖出的泥沙用于加强堤防工程建设，达到&挖&和&放&有机结合的目的。

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。