泄水堰 的英文怎麼說
中文拼音 [xièshuǐyàn]
泄水堰
英文
escape weir-
Tashan weir, now still in good condition after 1100 years of weather beating and storm whipping, has played the role of seawater holdback, fresh water conservancy, water diversion and discharge
它山堰是全國重點文物保護單位，歷經1100餘年風霜雨雪水和洪水沖擊，至今仍基本完好，繼續發揮著阻咸、蓄淡、引水、泄洪的作用。Study on discharge capacity of labyrinth weir
迷宮堰泄流能力及水力特性的試驗研究The system skillfully takes advantage of the naturltopography and the eurved waterflowing pattern om the middle reach of the mingjiang river, thus combining water - bifurcation, flood - diversion, sand - dredging and water - controlling as a whole gravity irrigation system, which guarantees the chengdu plain a land of abundance
都江堰巧妙利用岷江出山口處的地形、水脈、水勢、乘勢利導，使堤防、分水、泄洪、排沙、控流相互依存，共為體系，保證了防洪、灌溉、水運和用水綜合效益的發揮，孕育了舉世聞名的「天府之國」 。( 5 ) by analyzing the terrace in the lacustrine sediment of the ancient barrier lake, diexi, minjiang river, forming of the terrace is not only because of the intermittent arising of the tectonic movement, but also because of descend of the eroding normal covering resulting from destroying of the barrier lake
（ 5 ）通過對岷江疊溪古堰塞湖湖相沉積中的河流階地分析可知，階地的形成不僅僅是由於新構造運動的間歇性抬升作用，由於堰塞湖的潰決引起洪水下泄，導致河流侵蝕基準面的下降也可以形成階地。So the labyrinth weir is particularly suited for use where the discharge structure need to enlarge the ability of outflow but the width is restricted the labyrinth weir could be divided into straight - labyrinth weir and curve - labyrinth weir in this paper
因此，迷宮堰特別適用於泄水寬度受限，但又需提高泄流能力的泄水建築物中。本文將迷宮堰分為直線型迷宮堰和曲線型迷宮堰。As one of the three main parts of the dujiangyan irrigation system, it controls the water that flows into the baopingkou water inlet and discharges flood and sand with its top graphical feature
巧妙利用河道地形的泄洪排沙工程，為控制內江進水量的關鍵所在，是都江堰渠首工程三大主體之一。The labyrinth weir is a special kind of practical and effective weir patterns. it can evidently increase the discharge for a given outflow width
迷宮堰作為一種實用高效的特殊堰型，它在不改變泄水寬度的情況下，可大幅度提高過流能力。( 2 ) validate whether the crest elevation can meet the require of energy dissipation and erosion prevention during the beginning period of flood discharge. ( 3 ) calculate the altitude of downriver cofferdam, and make it meet the require of energy dissipation and erosion prevention. ( 4 ) calculate some average velocity of flow through some sections, including contracted section in stilling basins behind upriver cofferdam, if the hydraulic jump happen in lower reaches of the river. the program will calculate the average velocity of flow of contracted section and the length of the apron
主要設計內容包括：計算上游圍堰后消力池的尺寸；驗證泄洪初期壩面高程是否能夠滿足消能防沖需要；計算下游圍堰堰頂高程，使其滿足泄洪期圍堰和壩體過流的消能防沖和工程進度的需要；計算部分斷面平均流速，包括：上游圍堰后消力池中收縮斷面的斷面平均流速；壩首和壩末的斷面平均流速；當下遊河道發生水躍時，計算下遊河道的收縮斷面平均流速及需要鋪設護坦的長度。Lake missoula spilled out onto the lowlands in a rumbling, frothy flood peppered by chunks of the shattered ice dam
密蘇拉湖泄人低地，轟隆隆、泛著白沫的洪水上到處是冰堰的碎片。分享友人