Keliluoge iron ore reserves of 15.9 billion tons, in addition to nikopol and Tokmak manganese ore, the Dnieper water Human Resources, Lviv coalfield, kremenchugskoye oil, gas fields, as well as the northern part of Da Shawa forest resources are all of great significance.

克里羅格鐵礦儲(chǔ)量159億噸，此外尼科波爾和托克馬克錳礦石、第聶伯河水力資源、利沃夫煤田、克列緬丘格油田熟女污污色、達(dá)沙瓦天然氣田以及北部的森林資源等都具有重要意義。

The study on flow and heat transfer in downcomer under loss of coolant accident is important to the safety of reactor pressure vessel.

前 言對(duì)失水事故下有安注流動(dòng)時(shí)的反應(yīng)堆壓力容器內(nèi)流動(dòng)和傳熱的研究强奸乱轮在线视频，一直是反應(yīng)堆熱工水力研究的熱點(diǎn)之一你懂得小视频。

Hydraulic fracturing is a kind of process engineering that can improve the oil reservoir filtrational property, is an important measure that boosts production of oil field and augments injection of downflow well.

水力壓裂是一項(xiàng)改造油層滲流特性的工藝技術(shù)，是油氣井增產(chǎn)亚洲黄频网站、注水井增注的一項(xiàng)重要措施大黑欧美！黑黑。

The slurry pump is one of the key facilities of a dredger.

泥泵是水力輸送式挖泥船的關(guān)鍵設(shè)備。

With the increase of the momentum driftage of oxidic atmosphere add, at 10% concentration, when h/H＜0.075, its concentration depress along the height, when h/H＞0.1, its concentration increase, the whole concentration is to be symmetrical, from h/H=0.075 to h/H=0.1 is the vast changed area.

最后比較了兩種攪拌方對(duì)漿池高度方向上濃度和粒度分布的不均勻性影響久久特黄视频，發(fā)現(xiàn)機(jī)械攪拌或者水力攪拌對(duì)漿池內(nèi)濃度和粒度均勻性作用基本相同里番ACG全彩本子人妻，對(duì)于漿池中的傳質(zhì)反應(yīng)物質(zhì)采取提供的任意一種攪拌方式都能夠滿足使之?dāng)U散到漿池的目的，結(jié)果是等效的人人爱人人色人人操。

PDC bit crown profile, consisting of single circular arc parabola profile or dual cone profile with deeper inner taper is introduced. Cutter arrangement for various bits is determined. The bit is improved by the application of hybrid cutting structure and detailed analysis of hydraulic structure. Simultaneously, bit stability is enhanced using multiple bit stable structure design techniques such as deep inner taper, force balance and hybrid cutter arrangement etc.

提出了以單圓弧拋物線形輪廓或雙錐輪廓配以較深的內(nèi)錐組成PDC鉆頭的冠部輪廓亚洲国产欧美大片在线播放，確定了各種鉆頭切削齒的分布密度，應(yīng)用了各類切削齒混合設(shè)計(jì)切削結(jié)構(gòu)色哟哟在线精品，對(duì)PDC鉆頭的水力結(jié)構(gòu)做了詳細(xì)分析研究偷窥自拍欧美色图；同時(shí)，結(jié)合深內(nèi)錐在线天堂官网首页网址、力平衡一级片黄色网站、混合布齒等多種鉆頭穩(wěn)定性結(jié)構(gòu)設(shè)計(jì)技術(shù)，以增加鉆頭穩(wěn)定性色拍拍555。

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