hydraulic diameter 中文意思是什麼
hydraulic diameter
解釋
水力直徑-
Then hydraulic calculation of the most disadvantageous district in ramiform pipe system is carried out. the influences of different design forms on the choice of piping diameter and fire pumps are also discussed
針對枝狀管道系統，對滿足條件的幾種最不利區域形式進行了水力計算，討論了這幾種不同選擇形式對系統管道管徑的確定和水泵選擇的影響。 -
Reynolds numbers ( based on average velocity at passage inlet and hydraulic diameter of the passage ) are changing from 20000 to 80000 and the extraction ratios ( suction ratios, sr ) are changing from 0. 30 to 0. 60 for each test model. so the influences of reynolds numbers, suction ratios and etc. on the discharge coefficients and pressure loss characterist ics are also presented. flow fields of typical passages are visualized with the flow visualization techniques and measured with hot - wire anemometer
對每一種通道結構，實驗在不同通道進口雷諾數（ re = 20000 、 40000 、 60000 、 80000 ）和不同通道總出流比（ sr = 0 . 30 、 0 . 45 、 0 . 60 ）下進行，以研究這兩個流動參數及其它相應變化的參數（氣膜孔的雷諾數re _ h 、氣膜孔與通道的動量比i等）對出流特性和流阻特性的影響規律。 -
Some kind cylinder liner request measure nine parameters : inside and outside diameters in different positions, width of the boss of the part, hydraulic packing trough bottom diameter, shoulder place fillet partial diameter, and so on
某型氣缸套要求測量九個參數:不同位置內外徑，凸臺寬度，以及水封槽底徑和肩臺處的圓角部分的直徑等。 -
The cast basalt pipes owing to an excellent performance of abrasive and corrosion resistance. it may be used as the liner of pipeline for hydraulic pneumatic conveyance of abrasive corrosion materials or slurry. we can offer the cast basalt pipes with nominal diameter of 40mm800mm
玄武巖鑄石具有極好的耐磨損抗腐蝕性能，可作為電力化工冶金礦山煤炭等部門氣力或水力輸送磨損腐蝕性物料和漿料的管道系統的襯里。 -
We give three installing schemes in the measuring hydraulic cylinder in the fourth chart and analyse thire merits and shortcomings. we discuss the possibility of measuring grinding wheel diameter by ultrasonic wave we give the full electric circuit schemes, including emitting and receiving circuit, measuring temperature circuit, displaying circuit, regulated power supply, a / d converter circuit and so on
給出一種新的計時方法。同時我們還討論了利用超聲測量鋼坯磨床中砂輪直徑的可能性。在本文中，還給出了完整的電路設計方案，包括:發射接收電路、溫度測量電路、顯示電路、穩壓電源電路、 a / d轉換電路等。 -
The paper introduces experience of selecting hydraulic calculation formula and illustrates calculation of critical velocity of flow ( or critical pipe diameter ) and friction loss of pressure pipe in tailings transport and how to select the formula with examples
介紹工程實踐中，選用水力計算公式的體會，對尾礦輸送中臨界流速（或臨界管徑）和壓力管道摩阻損失的計算以及如何選用公式分別作了舉例說明。 -
Inside diameter required precision seamless steel tube for hydraulic and pneumatic cylinder use
液壓和氣動缸筒用精密內徑無縫鋼管 -
The experimental model is a rectangular section of 15. 2 187mm ~ 2, which is composed of two aluminum plates. the angles between the internal netted rib turbulators and the flow direction are 45 ? for the one plate and 60 ? for the other, or both 45 ? for two plates. in the experiment, the re numbers changes from 0. 4 10 ~ 4 1. 5 10 ~ 5, rib width - to - pitch are 0. 25, 0. 3 and 0. 5, rib width - to - height are 0. 25, 0. 3 and 0. 5, the rib height - to - hydraulic diameter ratio is 0. 246
主要研究了在通道進口截面積（即無肋處的截面積） a為15 . 2 187mm ~ 2 、肋高與通道當量直徑之比e / de等於0 . 246 ，實驗雷諾數范圍在0 . 4 10 ~ 4 1 . 5 10 ~ 5之間的情況下，雷諾數re 、肋向角a 、肋寬與肋高之比t / e和肋寬與肋間距之比t / p等參數對通道強化傳熱與流動阻力特性的影響。 -
3. testing all the hydraulic parameters of the sprinkler installed with adjuster such as working pressure, water flux, the range of the sprinkler, intensity of water drop impact, characteristic of water distribution, etc. according to the testing data, we can learn the quantitative relations among the structure of the adjuster, working pressure, diameter of the nozzle, elevation of sprinkler, wind power, velocity of rotation and the range of water
測試安裝「壓力調節器」后的噴頭的水力性能參數，即工作壓力、流量、射程、水滴的打擊強度、噴灑水分佈特性等。依據所測得的噴頭水力性能參數和射程數據，我們可較清楚的了解「壓力調節器」的結構形式、工作壓力、噴嘴直徑、噴射仰角、風力、旋轉速度和噴頭射程之間的定量關系。 -
Using matlab, the step response characteristics of the valve in the elevator system is simulated, comparing the effect of its performance with different structure parameters of the pipe rupture valve, such as hydraulic resistance, diameter of the valve, and spring rigidity, and comparing the valve ' s dynamic performance under different operating conditions, such as environment temperatures, number of passengers, and emergencies of the hydraulic system, so the paper offers a general and systematic analysis for the pipe rupture valve of the elevator system
另外，在液壓電梯不同的工況下，對該閥的動態性能進行了模擬對比研究，如不同環境溫度、不同乘客人數、不同液壓系統意外，以及不同的油液體積彈性模量，比較全面系統的分析了限速切斷閥在電梯系統中的性能，根據這些模擬結果，可以分析該閥正常工作的工況要求和環境要求。 -
The realizing methods for the algorithms are presented also. a hydraulic experiment system is established to simulate the different states of hydraulic system, with a pump, several valves, turbo - flowmeter, pressure gauge, and many hydraulic pipelines of different diameter
利用液壓泵、各種控制閥門、標準表及不同管徑液壓管路構建了一個液壓實驗系統，可實時模擬武器裝備液壓系統的各種工作狀態，為超聲波的壓力、流量測量提供了一實驗平臺。 -
The break was assumed to be a single tube double - ended and three - tube double - ended shear break. the diameter of the break orifice is 0. 876mm and 1. 518mm respectively. the characteristic responses of main thermal - hydraulic parameters, such as primary pressure, secondary pressure, break flow rate, pressurizer level, secondary side level of steam generator and so on, were presented in this thesis
試驗再現了核電廠蒸汽發生器單根傳熱管雙端斷裂事故和三根傳熱管雙端斷裂事故發生后的熱工水力現象，給出了事故過程中一次系統壓力、二次系統壓力、破口流量、蒸汽發生器二次側水位、穩壓器水位、元件表面溫度等主要參數的瞬態響應。 -
Ferrocement is a type of thin layer to reinforce concrete structure, where usually hydraulic cement is reinforced with layers of continuous and relatively small diameter steel wire mesh. the mesh can be made of metallic materials or other suitable materials
鋼絲網復合砂漿是以鋼絲網或鋼絲網和加筋為增強材料，水泥砂漿為基材組成的薄層結構，鋼絲網也可以用其它合適的金屬材料代替。 -
Mould board cabinet - type support base integral strcture, small diameter of screw bar with large length against diameter ratio, full computer dynamping color display temperature tuzzy controlling, imported hydraulic electrical devices, tine mould clamping rigidity, high precidion of injection, it is suitable for injection with engineering plastics
模板箱式支座連體結構，螺桿小直徑、大長徑比，全電腦動態彩色循環顯示，溫度模糊控制，進口液壓電氣配置，整機合模剛性好，注射精度高，適合工程塑料製品注塑成型。 -
Crowd out unit using screw that the big proportion of length and diameter, the effictiveness of plasticizing is very good. the head of mould using advanced electromotive system and hydraulic system, the degree of automatization is high, acting facillitately and the high of product efficiency. the head of mould using heating method inside, adjusting easily, the thickness of sheet is very precise, and the availability of heating is high, and saving the electricity
擠出機採用大長徑比螺桿，塑化效果好模頭換網部分採用先進電動液壓裝置，自動化程度高，操作方便生產效率高模頭採用內加熱式，具有調模容易板片厚薄更精確均勻，更為突出的是熱利用率高省電節能溫度控制採用 -
Analysis and disposition for an accident of drill bit being buried in large diameter drilling with non - circulation of slurry by hydraulic piling rig
某旋挖鉆機大口徑無循環鉆進埋鉆事故的分析處理
分享友人