Cavitation is universal phenomenon, which is very harmful to the fluid or hydro machinery.

空化是廣泛存在且對流體機械危害很大的物理現象bbixx.com。

Usage: It can be utilized for industrial hydro processing liquid, printing board acid, circuit board acid, oxidant and mordant for the dying industry, catalyst for the orgainc indusry, as well as the material to build chalybeate and colorant.

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As Hydro turbine blade is a very complex body closed by sculptured surfaces and the operating condition of the runner is also very complicated, traditional research way was combined the simplified theoretical analysis and model test.

由于水輪機轉輪葉片是非常復雜的雕塑曲面體二区视频在线，轉輪的工作條件也非常復雜，傳統的研究方法是采用簡化理論分析研究與模型試驗相結合黄色视频欧美。

In order to have better probing results from the hydro-geological exploration in North China coal field, ills necessary to have a comprehensive electric magnetic probing method.

為在華北型煤田水文地質勘探中取得更好的探測效果一级片黄色强奸，采用綜合電磁探測方法是必要的久久久久久精品免费免费直。

These findings provided some valuable information for further researches in coal tar hydro-upgrading process.

研究結果對煤焦油加氫改質工藝的深入研究提供了一定的理論基礎和參考全黄毛片。

Along with the constructing of large or even giant hydro-junction, cofferdam has likewise enlarged the scale and has become difficult to build .

隨著大型和巨型水利樞紐工程的興建，圍堰的規(guī)模不斷增大A片一级免费视频，施工難度也隨之增加黄网站色视频播放免费下载。

The results indicate that permeability and diffusivity of hydro-gen in various alloys over the experimental temperature range follow arrheniusequations and hydrogen permeation behaviour is not obviously influenced by cold-work and heat treatment of materials, but slightly influenced by the composition.

結果指出，氫在各合金中的滲透率和擴散系數在實驗溫度范圍內均遵循Arrhenius方程91啪在线观看精品，材料的冷加工和熱處理狀態(tài)對氫滲透行為沒有明顯影響免费人成黄页在线观看，合金成分略有影響亚洲激情图片。

At first, the hydrologic characteristics of estuary region and the current research situation about consistency correction for hydro-sequence and composite probability for tidal level and wave are elaborated.

論文首先闡述了河口地區(qū)的水文特性、水文序列一致性修正的研究現狀及潮位與波浪組合頻率計算的研究現狀黄色网址手机在线观看亚洲无码。

The study shows the BP neural network model of hydro-turbine for s pecial discharge and special torque can be used to describe its nonlinear charac teristic and ensure the continuity of derivative function of special discharge. The convergence for hammer calculating is improved.

水輪機單位流量和單位力矩特性的BP神經網絡模型能真實地表達水輪機的非線性特性欧美一级高潮片在线观看，且解決了插值法的導數不連續(xù)問題，從而改善了水擊計算的收斂性www中国黄色一级片a，為用于工程計算和科學分析的水輪機特性表達開辟了新的途徑怡红院wWw在线观看。

The biggest hydro plant in the United States is located at the Grand Coulee Dam on the Columbia River in northern Washington.

大古力水壩位于華盛頓北部的哥倫比亞河上，美國最大的水電站座落在這里99久久婷婷国产综合精品青。