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(jī)械危害很大的物理現(xiàn)象。

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(jī)轉(zhuǎn)輪葉片是非常復(fù)雜的雕塑曲面體，轉(zhuǎn)輪的工作條件也非常復(fù)雜日韩人人操人人射，傳統(tǒng)的研究方法是采用簡化理論分析研究與模型試驗(yàn)相結(jié)合性XX18。

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(zhì)勘探中取得更好的探測效果，采用綜合電磁探測方法是必要的老熟妇一区二区免费视频。

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

研究結(jié)果對煤焦油加氫改質(zhì)工藝的深入研究提供了一定的理論基礎(chǔ)和參考人人搞,人人操人人。

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www。五月天。com，施工難度也隨之增加欧美亚洲日韩一级特黄在线。

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(jié)果指出，氫在各合金中的滲透率和擴(kuò)散系數(shù)在實(shí)驗(yàn)溫度范圍內(nèi)均遵循Arrhenius方程全网最新黄色网站，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黄色视频免费在线观看不卡，合金成分略有影響。

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)的水文特性久久久极品精品、水文序列一致性修正的研究現(xiàn)狀及潮位與波浪組合頻率計(jì)算的研究現(xiàn)狀久久久精品国产自在看。

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(jī)單位流量和單位力矩特性的BP神經(jīng)網(wǎng)絡(luò)模型能真實(shí)地表達(dá)水輪機(jī)的非線性特性，且解決了插值法的導(dǎo)數(shù)不連續(xù)問題偷拍自慰，從而改善了水擊計(jì)算的收斂性高清无码不卡网站，為用于工程計(jì)算和科學(xué)分析的水輪機(jī)特性表達(dá)開辟了新的途徑。

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日韩黄色片网站，美國最大的水電站座落在這里国产青草视频免观看视。