1) U-shape canal lining with concrete
大型U形渠道
2) U-shape canal
大U形渠道
3) U-shaped canal
U形渠道
1.
Systematic experiments on the U-shaped canals with 12 different contraction ratios for measurin.
该文提出了一种仿真机翼形状的渠道量水设施,在U形渠道中通过12种量水槽收缩比进行了系统的组合试验,试验结果表明:该量水槽过流顺畅,水头损失小,试验数据资料表现出极好的相关性,相关系数为R2=0。
2.
The simplified calculation of cross-section gauging flow which follows Prandtl\'s exponential distribution law is presented for miniature U-shaped canals based on the practice from the interior control of irrigation water in Ningxia WUA and some gauging flow cross-sections are established on miniature U-shaped canal by irrigation projects and maintenance of agricultural comprensive development.
针对宁夏项目区农民用水协会(WUA)组织内部实施量水到户遇到的实际问题,考虑到农业综合开发田间配套工程中已在农渠等小型U形渠道上修建了部分用于渠道量水的标准断面,提出了流速服从紊流型态的普朗特指数分布规律的小型U形渠道断面测流的简化方法以及相应的断面流量计算公式。
4) U-shaped channel
U形渠道
1.
The hydraulic and structure properties of U-shaped channel s section are attractive.
U形渠道断面水力和结构性能优越,是渠道输水工程中较常采用的断面形式之一,水力计算中的正常水深、临界水深求解无显函数形式的表达公式。
2.
This article introduced the inference of the optimal hydraulic section,the radius selection of circular bottom and the height of vertical side,as well as the hydraulic calculation of a U-shaped channel.
介绍U形渠道水力最佳断面的推求,断面底圆半径与上部直立段高度的选取,以及泄流量的计算方法。
3.
Parabolic mobile measuring weir plate and portable flow measurement flume are two types of water-measuring device for small-sized U-shaped channel flow measurement in irrigation district.
抛物线形移动式量水堰板和便携式量水槽是针对小型U形渠道测流而提出的量水设备,具有使用方便,结构简单等优点。
5) U shape channel
U形渠道
1.
A new mobile parabolic thin plate weir for U shape channel flow measurement was developed, the height difference between upstream water and backwater and critical submerged ratio is analyzed, the allowable sectional area ratio of flow measuring weir to the U shape channel is obtained, the formulae for calculating the discharge and the law of the discharge coefficient are put forward.
该文提出了 U形渠道抛物线形移动式量水堰板 ,研究量水堰板的壅水高度、临界淹没度、喉口水深 -流量关系与渠道断面、比降和喉口收缩比的关系 ,给出了喉口收缩比范围和流量系数计算公式 ,分析了其测流误差。
2.
According to experiments in U shape channel, the discharge formula and discharge -head relation and discharge error are all found.
通过在U形渠道上的试验研究得出该槽的流量公式、流量水头关系、测流误差。
6) U shaped channel
U形渠道
1.
The applicability,backwater height,cement volume,flow measuring precision of vertical wall,parabolic thin plate,circle weir for U shaped channel flow measurement are analyzed.
U形渠道抛物线形无喉段量水槽、直壁式量水槽、圆底形量水槽具有与 U形渠道自然衔接 ,不抬高底坎 ,过泥沙能力较强 ,工程量较小 ,量水精度较高的优点 ,是 U形渠道量水的优化选择 ,对这 3种量水槽在不同尺寸、底坡和糙率条件下的 U形渠道的适应性、壅水高度、工程量及其量水精度等技术性能进行系统分析 ,表明抛物线形无喉段量水槽的适用面广、工程量小、壅水高度较低 ,量水精度与其它两种量水槽的量水精度相当 ,是一种高性能的多泥沙 U形渠道量水装置。
2.
Using simulation method, the applicability, backwater height, cerement volume, flow measuring precise of vertical wall, parabolic thin plate, circle flume types of U shaped channel flow measurement are analyzed.
U形渠道抛物线形喉口式量水槽、直壁式量水槽、长喉道圆底形量水槽具有与 U形渠道自然衔接 ,无底坎 ,不淤堵的优点 ,适合在多泥沙 U形渠道中应用 ,该文采用模拟方法 ,系统分析了这 3种量水槽在不同尺寸、底坡和糙率条件下的 U形渠道的适应性、壅水高度、工程量及其量水精度等技术指标 ,结果表明 :抛物线形喉口式量水槽的适用面广、工程量小、壅水高度较低 ,量水精度与其它两种量水槽的量水精度相当 ,能满足灌溉测流要求。
补充资料：鞍山钢铁(集团)公司大型轧钢厂大型轧机热轧型钢
鞍山钢铁(集团)公司大型轧钢厂大型轧机热轧型钢
鞍山钢铁(集团)公司大型轧钢厂大型轧机热轧型钢
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条