By the simulated results, the smaller nodules, the proper hoist flow velocity and the suitable transportation concentration will ensure the safety and efficiency of the hoist system.

更多錳結(jié)核粗顆粒水力提升揚(yáng)礦管的安全国产草草影院在线观看欧美，應(yīng)當(dāng)控制最大顆粒粒徑，并采用適中的輸送速度和輸送濃度欧美69av。

The motion of manganese nodules in the hoist pipe for the deep sea mining was forecasted by the model. By the simulated results, the smaller nodules, the proper hoist flow velocity and the suitable transportation concentration will ensure the safety and efficiency of the hoist system.

利用該數(shù)值模型對(duì)錳結(jié)核粗顆粒在深海采礦揚(yáng)礦管中運(yùn)動(dòng)的預(yù)測(cè)結(jié)果表明又黑又粗又长的黄色视频，為保證錳結(jié)核粗顆粒水力提升揚(yáng)礦管的安全，應(yīng)當(dāng)控制最大顆粒粒徑老司机欧美一级在线视频，并采用適中的輸送速度和輸送濃度欧美美国性交肛交高清。

According to the basic equations derived under the two assumptions by Harold Lauffer—(1) the energy head of every point of a vertical section remains constant,(2) the flow lines are concentric circular arcs,this paper qives a comprehensive deduction of curvature effect in the characteristics of free overflow of round-crested spillway.118 runs of experiments of three round-crested spillway models of different size have been conducted by the author.

本文根據(jù)勞弗爾氏在兩項(xiàng)假定[(1)垂直測(cè)線上各點(diǎn)所含能量為常數(shù)，(2)流線呈同心圓弧]下所導(dǎo)得的基本公式一级a黄色视频在线99，作了詳細(xì)的補(bǔ)充引伸护士jizz，得出圓頂壩自由溢流時(shí)各項(xiàng)水力特性中的曲率影響計(jì)算公式。作者曾進(jìn)行了大女同性恋一区二区三。区、中欧美三级片中文字幕另类、小三個(gè)圓頂壩模型的試驗(yàn)共118組，試驗(yàn)成果基本上和導(dǎo)得的計(jì)算公式相合致乱色熟女一区二区。文中并根據(jù)試驗(yàn)資料制定了一些經(jīng)驗(yàn)公式人人睡人人操人人干人人摸人人上，應(yīng)用時(shí)可更簡(jiǎn)便。

How to achieve the most efficient rock-breaking is the research direction of the rock-breaking technique.

在不同泵壓和淹沒壓力條件下婷婷色一区二区三区，針對(duì)不同類型的空化噴嘴對(duì)高壓空化水射流破碎巖石效果進(jìn)行了一系列實(shí)驗(yàn)研究人人做人人爱人人操人人摸，其主要目的是探討高壓空化水射流的沖蝕能力與水力參數(shù)的相互關(guān)系，提高破巖效率经典1页日韩中文字幕视频。

Based on the pennyshaped crack model and the hydraulic fracturing principle,the sand lens reservoir of horizontal occurrence is simplified as a type-I pennyshaped crack of the cap rock. It is due to the fact that the thickness and horizontal distribution length of the reservoir are much smaller than the global cap rock scale. The cap rock fracture resistance of the storage box is analyzed from the view of rock fracture mechanics.

基于幣形裂紋模型和水力致裂原理日本少妇性爱视频免费，將縱向厚度和橫向展布長(zhǎng)度均遠(yuǎn)小于蓋層巖石尺度的水平產(chǎn)狀砂巖透鏡體簡(jiǎn)化為蓋層巖石中的I型幣形裂紋，從巖石斷裂力學(xué)角度分析封存箱蓋層巖石的抗斷裂性能天堂网AV中文。

These two components take the corresponding measures are:① in the needle pre-set multi-stage filter, filter mesh filter Kong progressively reduced, in order to retain solid particles of impurities;② rubber diaphragm with high-quality products, and regularly check the diaphragm and the hydraulic control valve spring situation.

對(duì)這兩個(gè)部件采取的相應(yīng)措施是：①在針閥前設(shè)置多級(jí)過濾器在线视频日，過濾器濾網(wǎng)孔目逐級(jí)縮小，以截留固體顆粒雜質(zhì)无码人中文字幕黑人；②橡膠隔膜采用優(yōu)質(zhì)產(chǎn)品国产91视频免费看，并定期檢查隔膜和水力控制閥內(nèi)彈簧的情況。

CFD is used to optimize hydraulic performances of single wing labyrinth drip irrigation emitters.

應(yīng)用CAD-CFD技術(shù)改進(jìn)單翼迷宮式滴灌灌水器進(jìn)口的結(jié)構(gòu)一级大黄色视频，優(yōu)化其水力性能欧美在线免。

Germany TOP import plug valves categories: flange plug valves, stainless steel plug valves, cast steel plug valves, lined plug valves, plug valves turbine gate, pressure gauge plug valves, plug valves insulation.

德國(guó)TOP進(jìn)口水力控制閥類：多功能水泵控制閥、多功能持壓/泄壓閥精品国产AV无码喷奶水、多功能遙控浮球閥jizz在线国产视频、緩閉式止回閥、流量控制閥、活塞式可調(diào)減壓穩(wěn)壓閥狼友免费视频观看网站、活塞式安全/泄壓閥91在线国产观看视频。

It was known that clean sandy isn't in extension all the while, and a significant amount of fines exist in alluvial and hydraulic deposit silty sand.

純凈砂在自然界中并不多見，而含細(xì)粒砂土卻廣泛分布五月婷婷激情四射，尤其是水力沖積填土和海底沉積土欧美熟女1区。

Special mining engineering includes hydraulic mining technology, three underground mining technology, and underground coal gasification.

特殊開采工程包括水力開采技術(shù)、&三下&礦體開采技術(shù)在线视频国产欧美、地下氣化技術(shù)等成年人肉丝袜黄色网站。