G - generatrix 中文

generatrix n.(pl. -trices ) 【數學】(產生線、面、...

generic
Base on the study and practice about fast protecting project of jkm - 1 type generatrix , indicator system is build about scientific project and engineering project of electric company . after show the overall process of project post evaluation , it provides some suggestions and countermeasures concerning the scientific project and project post evaluation in our country ’ s actual condition . the article gathers the experiences for the development of project post evaluation and provides some reference and consultation 本文著眼于對電力行業中的一個典型研發項目進行后評價研究,系統地闡述了項目后評價的理論、方法、指標體系和流程,通過對jkm - 1型10千伏母線保護研發項目后評價全過程的分析和對該項目重點問題的研究,確立了電力行業科技項目和工程項目后評價的指標體系,最后就我國電力行業科技項目和工程項目的管理提出了對策和建議,希望為電力企業項目后評價工作的開展提供參考和借鑒。
The contacting measurement method with a double probe is put forward after the detailed analysis of the state - of - the - art measuring methods of the thickness of wall . firstly , the theory - profile generatrix is built , and then the movement curve of the track of joint center is constructed , which aims at making the joint center move along the movement curve and keep the fixed sensor touching the wall . the measuring sensor examines the line in its normal direction of the interior wall all the time , the data from the sensor is the thickness value of the wall 論文通過分析國內外變曲率回轉體壁厚測量的現狀,提出了雙測頭接觸式測量方案:通過構造理論輪廓母線,建立鉸鏈中心的運動曲線,使鉸鏈中心始終沿運動曲線運動,以保證固定觸頭與傳感器測頭的連線始終在內壁法線方向上,從而傳感器測頭所得的數值即為壁厚值,該方案經模擬測試實驗取得了預期效果。
Based on the geometry characteristics of bertrand surfaces , the complicated surface conjugation issue can be discussed with their directrix line . according to the different generatrix line which can be divided into common plane curve , circular - arc curve and straight line , bertrand conjugation surfaces are parted into three typical types , and the basic equation and differential formula are established , then the conjugation conditions are found . aiming at the inclusive problem , the structure condition is given 論文將白川德共軛按母線為一般平面曲線、圓弧、直線分為三種典型類型，分別建立了共軛的基本方程與微分關系式，據此給出了各種類型的共軛基本條件，發現這是一類更強更嚴的條件，存在有相容問題，進而研究了白川德共軛的結構條件，至此確立了白川德共軛的基本框架。
Abstract : based on the basic concept of the revolving shell , the equation of the middle surface generatrix of the approximate ellipsoid portion of the ellipsoidal head is derived , the unwrapped area and the unwrapped diameter of the ellipsoidal head are calculated , the result is compared with that of derived from the real ellipsoid and that of calculated from the empirical equation , relative chart and code are given out , which could be used by manufactures for reference 文摘:根據回轉殼體的基本概念，推導了橢圓封頭的近似橢圓殼部分的中面母線方程，據此推導計算了橢圓封頭的展開面積及展開圓直徑，并根據橢圓殼幾何形狀推導的結果與經驗公式所得結果進行了比較，給出了有關圖表及計算程序，可供制造單位參考使用。
The power circuit of the system adopts the voltage frequency conversion structure of ac - dc - ac , and is composed of the commutation circuit , filter circuit and intelligence power module ( pm15rsh120 ) . control circuit takes the dsp chip tms320lf2407 as core , including the pwm signal occurrence circuit , detect circuit of stator current and direct current voltage of generatrix , drive circuit of intelligence power module , detect circuit of speed , protect circuit of system etc . all of this builds the full digital vector control system of asynchronous motor 該系統的功率電路采用電壓型的交-直-交變壓變頻結構,由整流電路、濾波電路及智能功率模塊ipm ( pm15rsh120 )逆變電路構成;控制電路以dsp芯片tms320lf2407為核心,加上pwm信號發生電路、定子電流檢測電路、直流母線電壓檢測電路、智能功率模塊驅動電路、速度檢測電路、系統保護電路等,構成了功能齊全的異步電機全數字化矢量控制系統。
So it is worth to researching the problem that how to rationally distribute generatrix , vacuum interrupter and other electric organs to make the better insulation cooperation and the design requirement with the highly reliable insulation property so that we can assure that the metalclad withdraw switchgear run safely in the distribution system and have smaller installation space 因此如何能夠合理的配置母線、真空斷路器及其它電器元件，得到較佳的絕緣配合和設計要求，具有高度可靠的絕緣性能，保證中置柜在配電系統中安全運行，并且有較小的安裝空間，是一個值得研究的問題。
I t owns international - advanced cross - linked cable production lines at rated voltage up to 500kv in the 1990 s , rubber cable line of 35kv , ship and mineral cable line , optical fiber cable for communication use and data cable line , extra - high voltage cable testing device , with which bare wires , electric power cable for electric equipment , power cable and distribution air reinforced insulated generatrix slot , 5 , 6 , and 7 data and digital cable with 6 classes , hundreds of series and tens of thousands of specifications 集團擁有國際90年代先進水平的500kv及以下8條交聯電纜生產線， 35kv橡纜生產線船用礦用電纜生產線光纜數據纜生產線以及光纜超高壓電纜檢測裝置，能生產裸電線電氣裝備電線電纜電力電纜配電類空氣加強絕緣型母線槽， 5 6 7類數據纜光纜共六大類百余個系列萬余種規格的產品。
In this paper , it did simulation experiment and tested in the locale for quick - fuse , generatrix temperature and current - sharing coefficient . moreover , it did research on control arithmetic for temperature control system and did system simulation . and to discuss comparatively detailedly harmonic ' s produce , harm and restrain 本論文對快速熔斷器、母線溫度和均流系數進行了模擬實驗和現場運行的測試，并且對溫度控制系統進行了控制算法的研究和系統仿真，對諧波的產生、危害和抑制進行了比較詳細地論述。
I t owns international - advanced cross - linked cable production lines at rated voltage up to 500kv in the 1990 s , rubber cable line of 35kv , ship and mineral cable line , optical fiber cable for communication use and data cable line , extra - high voltage cable testing device , with which bare wires , electric power cable for electric equipment , power cable and distribution air reinforced insulated generatrix slot , 5 , 6 , and 7 data and digital cable with 6 classes , hundreds of series and tens of thousands of specifications 集團擁有國際90年代先進水平的500kv及以下8條交聯電纜生產線， 35kv橡纜生產線、船用、礦用電纜生產線、光纜、數據纜生產線以及光纜、超高壓電纜檢測裝置，能生產裸電線、電氣裝備電線電纜、電力電纜、配電類空氣加強絕緣型母線槽， 5 、 6 、 7類數據纜、光纜共六大類、百余個系列、萬余種規格的產品。
The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection . prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation , put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years , avoid ct saturation district , can judge the bus bar trouble correctly 但是在母線區外發生短路故障(特別是故障電流含有大量非周期分量)時， ct會出現飽和現象， ct飽和后，不能正確地傳變一次側電流，從而使二次電流發生嚴重畸變，產生很大的差電流，這樣就容易引起誤動作。防止ct飽和時差動保護誤動作一直是母線保護的一個重要課題，近年來提出的在ct二次電流過零時的線性傳變區投入差動保護，避開ct飽和區，能對母線故障做出正確判斷。
Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly . because the width dimension of loxodrome groove is narrow and the depth is deep , some machining methods are incapable , such as end - milling or electrochemistry . according to the peculiarities , a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched . because most firebox generatrix is composed of complex curves , it is very difficult to get cnc cutting program with manual means . in order to deal with the problem , the loxodrome mathematics model is studied , and an auto - programming software system is developed . the software system can generate cnc cutting program of loxodrome on many kinds of turned surface . the constriction - distension segment of firebox is the most representative workpiece . the sharp changing of its generatrix slope makes loxodrome milling difficult . with the theory analyzing and practice cutting experiment , some applied techniques , which include milling mode and direction , choosing cutter diameter and cutting start point setting , are developed . adopting the technology above , tens regular workpiece have been manufacturing . the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method . the developed technology is also worth to be referenced to other similar workpiece 將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角螺旋線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由于燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟件系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.采用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研制成功,對其他相似類型零件的加工亦具有參考意義
Moreover , while changing link state of equipments between power line , generatrix , transformer and generator which are manipulated by jiangsu province ' s control center and bidding and retreating correlated relay protector and automatic safty safeguard , project company may obey related regulations of schedule discipline 項目公司在改變由江蘇中調調度的線路、母線、變壓器、發電機之間的設備連接狀態和投退有關繼電保護和安全自動裝置時，應服從調度規程的有關規定。
After electric heating system is installed , check electrical insulation of all circuits . the insulation resistance between generatrix and shielding layer , core wires of series cable before connection at end not be less than 20 m . and then check if dc resistance of circuit is normal and phase resistance is banlance 電伴熱系統安裝完工后，應逐路檢查系統的絕緣電阻：各種電熱帶母線與屏蔽層之間、串聯帶芯線尾端末短接前的各芯線間絕緣電阻均應不小于20m ；然后再檢查電熱帶直流電阻是否正常，三相電阻是否平衡。
The directrixes of the in former two transmissions are the loxodrome and the geodesic on the pitch cones , that of the latter is an equal - pitch line along the direction of straight generatrixes in the hyperboloid surface , also is the vertical trajectory of the straight generatrixes 前兩種傳動形式的準線分別為節錐面上的斜航線與測地線，后者的準線為單葉雙曲面上沿直母線方向的等螺距曲線，且為直母線族的正交軌線。
There are some geometry characters about it , for example , it is simple in structure , and the normal lines along generatrix line are in one plane , so there are the extensive applying prospects hi mechanical transmission and surface processing 此類曲面結構單純，沿母線法線共面，并且有許多重要的幾何性質，在機械傳動和曲面加工中有著廣泛的應用前景。
The reconstruction algorithm is presented in detail in the third chapter , including the computing of axis and the reconstruction of generatrix . then two examples are given to show the effectiveness and veracity of the algorithm 論文的第三章詳細闡述了本文所提出的旋轉面重建算法，給出計算旋轉軸和反求母線的步驟，并在最后給出了兩個算例。
An algorithm is researched and implemented of revolve model generation on point cloud . with the algorithm the revolving axis and the generatrix are extracted through point cloud 通過對軸心線、母截面提取算法的研究，實現了旋轉實體模型的生成算法。
On the base of resemble model , the figure of contracting pipe was changed , the generatrix became arc for once it was straight line , named resemble model 在相似模型的基礎上,收縮管的直線圓錐改造成母線為圓弧形的圓錐,稱相似模型。
Formula to evaluate translation of the tooth - surface and the equation to describe the generatrix of the negatively cambered sooth - surface were derived , respectively 分別推導得到齒面平移距離和內凹齒面母線方程的計算公式。

名稱
說明
信箱
電話
圖片	移動背景圖固定背景圖重製上傳圖片

generatrix

generatrix n.(pl. -trices ) 【數學】(產生線、面、...

generic

An algorithm is researched and implemented of revolve model generation on point cloud . with the algorithm the revolving axis and the generatrix are extracted through point cloud 通過對軸心線、母截面提取算法的研究，實現了旋轉實體模型的生成算法。

On the base of resemble model , the figure of contracting pipe was changed , the generatrix became arc for once it was straight line , named resemble model 在相似模型的基礎上,收縮管的直線圓錐改造成母線為圓弧形的圓錐,稱相似模型。

Formula to evaluate translation of the tooth - surface and the equation to describe the generatrix of the negatively cambered sooth - surface were derived , respectively 分別推導得到齒面平移距離和內凹齒面母線方程的計算公式。