- 更多网络例句与小河道相关的网络例句 [注:此内容来源于网络,仅供参考]
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The retaining wall reclining on the slight slope built on soft foundation is usually used in protecting the shore of river, the contradiction between the lack of impartiality in stress of the base and the small stress allowed by the foundation as well as the lack of stabilization of the breast wall is a hard nut to crack in the engineering .
软基上的仰斜式挡土墙在水利工程河道护岸中经常遇到,仰斜式挡土墙基底偏心应力较大和软基土地基容许承载力偏小的矛盾以及挡土墙抗滑稳定不足是工程中难以解决的难题。
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The distribution of the sedimentary microfacies of each sublayer of Chang 6 reservoir is studied, It is concluded that the hydrocarbon accumulation is controlled by sedimentary microfacies. The subaqueous distributary channel of delta front and distributary channel of delta plain are the most favorable facies belts for reservoir distribution and development.
同时对长6油层组各小层沉积微相的时空展布特征进行了分析,认为油气聚集受沉积微相的控制,三角洲前缘亚相的水下分流河道微相和三角洲平原亚相的分流河道微相是砂岩储层分布和发育的最有利相带,也是今后勘探开发的方向。
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The minimum instream ecological water demand is the epiboly value of each instream flow quantity.
河道内各项需水量的外包值为河道内的最小生态环境需水量。
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Based on the eco- environment function, confirmed the constitution of eco- environment water demand(including the inside of the watercourse.and the ecological water demand of the outside of the watercourse such as ecological water demand of economical crop, of lake or reservoir and of cities.).③Analyzing the physical geography, hydrography, economy characteristic and water resource status, getting the proper calculation method. The Tennant applied to the eco- environment water demand of inside of the watercourse, woodland minmum eco- environment water demand calculation method applied to the eco- environment water demand of woodland, water ration method applied to farmland the eco- environment water demand, water evaporation method applied to the reservoir eco- environment water demand.
本文以流域生态环境需水为主要研究对象,因此重点阐述了流域生态环境需水量的分类和计算方法;②通过分析流域生态系统构成与流域生态环境功能,并分时段和河段考虑,确定了桃花江流域生态环境需水量的组成,即包括维持现状河道生态环境功能现状的现状生态环境需水量与流域生态环境改善的生态环境需水量,前者包括河道内生态环境需水量(维持河道基本生态功能需水量、维持河道自净稀释功能需水量、补充地下水水量及美化流域景观娱乐需水)与河道外生态环境需水量(流域内植被、森林、农田的需水量和与河道相连的池塘、水库等的需水量);后者还包括为治理改善流域生态环境而拟规划林业生态建设所需水量;③对桃花江流域的自然地理、水文地质和社会经济特征以及水资源现状及其主要生态环境问题进行了综合分析,提出了适合桃花江流域的生态环境需水量计算方法,即采用Tennant法计算河道内生态环境需水量,采用林地最小生态环境需水量法计算林地生态环境需水量,采用需水定额法计算农田生态环境需水量,采用水面蒸发法计算水库、池塘生态环境需水量。
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On the basis of summarizing the calculating methods of minimum instreaming ecological flow at home and abroad, the improved wetted perimeter method is adopted to determine minimum instreaming ecological flow of upper reaches of Hangjiang River.
在探讨总结国内外计算河道内最小生态流量(minimum instream ecological flow)方法的基础上,针对汉江流域的实际情况,选用改进湿周法对汉江上游石泉、安康和白河3个水文断面的最小生态流量进行定量估算。
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Base on core observation and grain size analysis, and under associated consideration of logging trace characteristics, Chang8 reservoir in study area is classified into three sedimentatal microfacies, subsea river, mouth bar and river flank.3.The mian diagenesis in study area are: mechanical compaction, cementation, metasomasis and denudation in late diagenetic phase.4. In allocation of reservoir macroscopic heterogeneity, more heterogeneticer reservoir, class 1 and class 2, mainly locate in the center of subsea river or crook and divaricate of the river; class 3 and class 4 mainly locate in river flank, and the physical property of these locality are better.5. Diagenesis of reservoir have influence on the pore structure which influences the reservoir microscopic heterogeneity. The better the pore structure is, the slighter the reservoir microscopic heterogeneity is; on the contrary, the reservoir microscopic heterogeneity is serious.
本次研究所取得的主要成果及熟悉有:1、将合水地区长8储层细分为6个小层:长8_1~1、长8_1~2、长8_1~3、长8_2~1、长8_2~2和长8_2~3.2、依据岩心观察和粒度分析,并结合测井曲线特征,研究区长8储层分为水下分流河道、河口坝和河道侧翼四种沉积微相。3、研究区主要经历的成岩作用有:机械压实和压溶作用、胶结作用、交代作用、晚成岩期溶解作用。4、从宏观非均质性平面展布特征来看研究区宏观非均质较强的1类和2类区主要分布于水下分流河道中间或河道拐弯和分又处。3类和4类往则主要分布于水下分流河道侧翼,这些地方储层均质性相对较好。5、储层成岩作用影响储层的孔隙结构,储层的孔隙结构又对储层的微观非均质性有不同程度的影响,孔隙结构越好,则储层的均质性越好,储层的孔隙结构差,则非均质性强。
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The main target zone of the CARACOLES area in eastern Venezuela basin is a series of delta facies sedimentation in ocean-land transitional environment.
东委内瑞拉盆地卡拉高莱斯地区主要目的层为一套海陆过渡环境的三角洲相沉积,三角洲平原河道、三角洲前缘水下分流河道、河口坝及决口扇构成区内主要沉积骨架砂体,各种微相砂体单层厚度薄,分布面积小,在地震剖面上无法直接识别。
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This paper reviewed the developments in 2-D numerical model of the water flow. By means of the latest observation data of the prototype, the detailed analysis was made on the major thalweg, section, island and bottomland, the erosion and deposition of the river bed and the scour hole near the dock and the law of the fluvial process was obtained. Based on the related references, the evolution trend of the channel after the Three Gorges was finished was predicted. The 2-D mathematical model of the water flow was set up and validated using the latest data. With the model, the flow and velocity of several cases were calculated. The stability computation of the bank at the typical section under difference conditions was carried out by adopting the world widely used Geo-Slope slope stability analysis program. Finally, the synthetical evaluation on the influence of the project on the flood level, velocity, river circumstances, bank protection and flood prevention was made and the conclusion that the construction of the dock had little effect on the flood discharge was obtained.
本文介绍了平面二维水流二维模型研究进展,对河道历史演变概述,通过最新原型观测资料对河道近期主泓线、断面、洲滩、河床冲淤、码头附近冲刷坑等进行详细分析,总结近期河道演变规律,并参考有关文献,对三峡建成后河道演变趋势进行预测;建立了平面二维水流模型,并根据最新资料对模型进行率定和验证,采用模型对几种工况组合进行壅水和流速计算;采用国际上广泛应用的Geo-Slope滑坡稳定分析程序对几种工况条件下工程断典型断面岸坡进行稳定性计算;最后总结工程建设对洪水位、流速、河势、堤防及防洪抢险等方面进行综合评价,得出码头建设对行洪影响较小的结论。
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A survey of the areas to be affected by the Project shall be carried out before commencement of construction to ascertain the presence of the fish and amphibian species of conservation interest, including the Beijing Thick-lipped Barb at stream no. 15, the Lesser Spiny Frog at streams no. 18 and 21, the Hong Kong Newt at stream no. 19 and the Romer's Tree Frog at stream no.
在建造工程展开前,须为受工程项目影响的地方进行调查,以确定这些地方有具保育价值的鱼类及两栖动物出没,包括在河道第15号出没的北江光唇鱼、在河道第18及21号出没的小棘蛙、在河道第19号出没的香港蝾螈,以及在河道第21号出没的卢文氏蛙。
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Tally up the course of river ecosystem needs the calculation method that the amount of water already has and applies the condition, according to the characteristics of the province sea river area plain course of river of Shandong, the least that makes use of Tennant method etc.
总结河道生态需水量已有的计算方法和适用条件,根据山东省海河流域平原河道的特点,利用Tennant法等方法计算出山东省海河流域河道内生态的最小需水量。
- 更多网络解释与小河道相关的网络解释 [注:此内容来源于网络,仅供参考]
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anabranch:交织支流
anabranch 汊河 | anabranch 交织支流 | anabranch 小河道网
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creek:小溪
"西方自然地理学对河流分类有干流(Trunk Stream)、支流(Tributary)、溪流(Rill)、小河(Rivulet)、小涧(Brook)以及小溪(Creek)等名称,是按河流水量大小和河道长短而定.
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anadromous midstream:溯流同游
anabranch 小河道网 | anadromous midstream 溯流同游 | anaerobic 厌氧的
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rivulet:小河
"西方自然地理学对河流分类有干流(Trunk Stream)、支流(Tributary)、溪流(Rill)、小河(Rivulet)、小涧(Brook)以及小溪(Creek)等名称,是按河流水量大小和河道长短而定.
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tributary:支流
"西方自然地理学对河流分类有干流(Trunk Stream)、支流(Tributary)、溪流(Rill)、小河(Rivulet)、小涧(Brook)以及小溪(Creek)等名称,是按河流水量大小和河道长短而定.
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Bothriolepis:沟鳞鱼
这个小壳是由许沟鳞鱼(Bothriolepis)是生活在泥盆纪沿海和河道口的一种盾皮鱼. 头部和胸部的外面,套着一个和蟹壳有些相像的小壳. 这个小壳是由许多块小骨板合成的,上面有弯曲的细沟. 沟鳞鱼没有真正的鳍,仅在胸部长有一对套着硬壳的"翅膀".
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brooky:多溪流的,(小)河道纵横的
Brooks | 布鲁克斯 | brooky | 多溪流的,(小)河道纵横的 | broom corn millet | 黍, 稷
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gora:大山小山丘
gora 大山 | gora 大山小山丘 | gorce 河道险阻
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gorce:河道险阻
gora 大山小山丘 | gorce 河道险阻 | gorestrake 外板的并列板