例句與用法

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1. Hydraulic experiments on long water supply pipelines connected to overflow weirs
   長輸水管道尾部保水堰的水力特性試驗研究
2. Study and practice of the scheme of unclosed levee and overflow weir type levee in qiantang river
   錢塘江開口式及滾水堰式堤防的研究與實踐
3. Boats going over the overflow weirs ; access when water levels fluctuate leaving steep banks
   如何在水位下降而堤岸外露情況下，仍可安全進出水塘范圍；
4. This paper introduces the surface forming technology for pocket concrete overflow weir , analyzes and compares construction technique for two types of gate and built - in parts , and presents rating methods for concrete samples when they are less than 30 groups
   摘要現介紹了小型混凝土溢流堰堰面成型工藝，分析比較了兩種閘門埋件施工工藝，提出了數量不足30組時的混凝土試塊評優的方法。
5. According to the hydraulic property of overflow weirs under steady flow , the flow patterns of overflow weirs were classified into free overfall and submerged overfall , and numerical models for unsteady flow were established to simulate the two flow patterns respectively
   摘要為了對保水堰的交替水流進行數值模擬，依據保水堰恒定流情況下的工作特性，將保水堰的水流形態分成堰流和滿流兩種狀態，分別建立保水堰不同流態下的非恒定流數學模型。