channel-section 中文意思是什麼
channel-section
解釋
槽形截面-
Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution
在此基礎上模擬在冬夏兩季不同情況下，不同流速對熱管空氣預熱器壁面溫度的影響；然後對影響整個流場分佈的各種因素：包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬；最後提出在分流煙道轉彎處加裝導流板，並模擬加裝導流板后的流場分佈，得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場分佈、濃度場分佈，以論證加裝導流板能達到流場均勻化的作用。 -
First, according to measured data and literature, the river channel evolution rule and its reasons in the southern branch of the yangtze river are discussed from the perspectives of historic evolution, recent evolution and the tendency prediction of river channel evolution. besides, the local reservoir has been studied from the changes in thalweg and section as well as the calculation of local erosion and deposit. consequently, the stability and feasibility of reservoir construction in the river section are approved
首先根據大量實測資料及文獻資料，就歷史變遷、近期演變、河演趨勢預測等方面，初步探討了長江口南支河段河道演變規律及原因，並具體就深泓線的變化、主槽斷面變化、局部沖淤計算等方面對擬建水庫局部區域進行了分析，論證了工程河段建設水庫的穩定性及可行性。 -
Then river width increased and the intensity of deep point lowing and bed material coarsening decreased and water level lowed continuously. so the bed form changed toward to u type. the bed regulation is realized through sediment silting in different parts in cross section during silting period and the deformation of bed form changed from broad u type channel to narrow and deep v type channel
研究表明，河道在持續沖刷前期深泓點及水位下降與河床粗化同步發展，河床向v型發展；沖刷後期深泓點下降、河床粗化減弱，河道展寬增大，水位繼續下降，河床向u型發展；在以淤積為主時期的調整，是通過斷面不同部位的淤積來實現的，但都是由u型較大河槽向v型窄深小槽發展。 -
In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data
本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好 -
Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section
在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。 -
The bulk of effect on dredging river for deposition reduction is relative to chosen datum of dredging channel geometry parameter. geometry parameters include dredging channel length, morphology of transversal section and longitudinal slopes
挖河減淤效果的大小與挖槽幾何參數的選值有關，幾何參數包括挖河長度、斷面形態及挖槽比降等。 -
In this paper, we study the most serious damming section of the east - one main canal, which is from the entrance of the hao wan flume ( chainage12 + 123. 6 ) to the exit of shang tian yuan tunnel ( chainage24 + 091. 1 ). the main content is analyzing the flow characteristic of the canal, setting up mathematical model of the discharge condition of the east - one main canal, according to the survey section and actual roughness factors, building, bend and so on, we divided the canal into more than loocaculation segments. each segment is calculated by microsoft excel electrical table through computer as permanent transition flow of non - prismatic channel
本論文研究的渠段為陸渾灌區東一乾渠壅水最為嚴重的渠段，從郝灣渡槽進口（樁號12 + 123 . 6 ）至上天院隧洞出口（樁號24 + 091 . 1 ） ，其主要內容是，分析渠道水流特徵，建立東一乾渠輸水狀況的數學模型，根據測量斷面及實際糙率、建築物、彎道等因素的不同，將渠道劃分成120多個計算段，每段按非稜柱體恆定漸變流，運用microsoftexcel電子表格進行編程計算。 -
Channel section bolster
槽形斷面搖枕 -
Drilled holes and screw connections for busbars ; channel section busbars
匯流條用鉆孔和螺紋連接件.槽形截面匯流條 -
There must be a marine casualty happened every 4 days before 1984, the amount of marine casualty happened at this area corresponds to 1 / 7 amount of the whole changjiang " marine casualty, so mariners gave it a name as " mouth of tiger ". due to the specific geographical condition and the extremely representative vessel traffic management of changjiang yingongzhou channel section, many intelligent people began researching and practicing the vessel traffic management of this changjiang " s down - stream complicated channel section from 1980s, at dec 15th 1984 the authority at that time - changjiang yingongzhou channel section previously ; up to the last years of 1980s ministry management administration applied traffic control on changjiang yingongzhou channel section previously, up to the last years of 1980s ministry of communications assigned shanghai marine college, shanghai ship & shipping research institute and changjiang harbor superintendence administration to make feasibility demonstrate about modern vts of zhenjiang traffic control section ; in 1990 dasha radar station which is the first radar vts station with inner river was finished, groped a new way for applying modern radar traffic control of vessel traffic management ; in 1997 the vtms of changjiang " s down - stream from nanjing to liuhekou was completed with connecting net and came into operation formally, meanwhile the signals of dasha radar station were conveyed to vts center by light cable, and then united applying vessel traffic management upon the whole authorized area ; in jun 2001 jiangsu msa made changjiang yingongzhou channel section as the first experimental group of creating " civilized, safe, passable channel activity, updating dasha radar antenna and receive - transmitter building closed - circuit television monitor system, setting uo safety warning board, starting navigational route reformation, carrying out united construction
1984以前這里平均每四天就發生一起海損事故，事故數占整個長江的1 7 ，被行船人稱為「老虎口」 。長江尹公洲航段緣其極為特殊的地理區位條件和極具代表性的船舶交通管理，從上個世紀八十年代初就有識之士開始了這個長江下游最復雜航段的船舶交通管理探索和實踐。 1984年11月15日當時的長江航政管理局在長江尹公洲水域率先施行交通管制；到八十年代末交通部委託上海海運學院、上海船舶研究所和長江港監局聯合開展鎮江交通管制段建立現代化交管系統的可行性論證； 1990年大沙雷達站? ?內河第一座雷達交管站建成，摸索實施現代化雷達交管的船舶交通管理新途徑； 1997年長江下游南京至瀏河口船舶交通管理系統建成聯網投入正式運行，同時將大沙交管雷達信號通過光纜傳輸至交管中心，統一實施全轄區船舶交通管理； 2001年6月江蘇海事局將長江尹公洲航段作為第一批創建「文明平安暢通航段」活動試點航段，更新大沙雷達天線和收發機，著手閉路工業電視監控系統建設，設立安全警示牌，啟動航路改革，開展聯合「共建」 。 -
Stream ordering and channel section node indexing based on dem
基於數字高程模型的河道分級與節點編碼 -
In this paper, the factors which affect the channel length and the length of the pinch - off region of the channel are discussed, and the function of the vdmosfet is improved by optimizing the channel section
摘要討論了影響溝道長度及溝道的夾斷區長度的因素，通過溝道區的優化促進了vdmosfet性能的提高。 -
The velocity profiles along the channel section are measured using the laser doppler anemometer. according to the velocity distribution, boundary shear and the coefficient of friction between the flow and rubber panel, is determined
採用多普勒激光測速儀對過流斷面的流速分佈進行了測量，並根據流速分佈推求出壩面上橡膠板所受的水流剪應力，和水流對橡膠板的摩阻系數。 -
Sizes of specimens are the same as those in practical engineering project. the lipped channel section is used as wall studs and its space is 500 millimeter. the wall sheathings are screwed on cold - formed steel studs, with 12mm gypsum board on one side and 9 mm oriented strand board ( osb ) on another side
試件的立柱骨架為間距為500mm的c型卷邊槽鋼，兩側墻面板分別是12mm厚的石膏板和9mm厚的osb定向刨花板，墻面板與立柱骨架用自鉆自攻螺釘連接。 -
Aerospace series - extruded channel section, in aluminium alloys - dimensions
航空航天系列. u形鋁及鋁合金擠壓件.尺寸 -
Aerospace series - extruded channel section in aluminium alloys - dimensions
航空航天系列.鋁合金擠壓槽型型材.尺寸 -
Aerospace series - extruded channel section, exruded in aluminium alloys - dimensions ; german and english version en 2049 : 2001
航空航天系列.鋁合金擠制槽形型材.尺寸 -
Changjiang yingongzhou channel section, which is the biggest crossing water area of inner river in china, is located at the intersection formed by changjiang river and jinghang canal, all this channel is 16 km long
全國最大的內河十字交匯水域? ?長江尹公洲航段，地處萬里長江和京杭大運河匯集處，航段全長16公里。 -
The vessel traffic safety management of changjiang yingongzhou channel section among 1980s to these days, from original " selfgoverning legally " stage improving to " monitoring service " stage, and then to nowadays comparative modern " traffic organizing management " stage, moreover, it will develop to even more advanced stage along with society proceeding and science progress
長江尹公洲水域的船舶交通安全管理在上個世紀八十年代初至今的20年裡，從最原始的「循章自治」階段逐步演進到「監視服務」階段，再演進到今天現代化的「交通組織管理」階段，並將隨著社會發展和科學技術的進步向更高級的階段發展。 -
On account of the vessel traffic organizing management of changjiang yingongzhou channel section is puite representative, therefore facing to times get ahead and technology develop, according to the feature of changjiang channel vts, bringing into the newest science technology and advanced management concept, abstracting a series of full direction tridimensional monitor - control vessel traffic management mode in theory, no matter for the past time, the present or future time, it will all make good sense to marine traffic safety management from both theroretical and realistic
由於長江尹公洲水域的船舶交通組織管理十分具有代表性，因此順應時代的進步和科技的發展，根據長江水道型vts自身特點，引進最新科學技術和先進管理理念，從理論上提煉出一套全方位立體監控船舶交通管理模式，不論對過去、現在，還是將來，都會對水上交通安全管理具有理論和現實兩方面的重大指導意義。
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