弧心角 的英文怎麼說
中文拼音 [húxīnjiǎo]
弧心角
英文
centering angle-
A radian is the angle subtended by an arc of a circle whose length is just equal to the radius.
一弧度就是長度剛好等於半徑的一段圓弧所對的圓心角。We have been closely cooperated with beijing institute of technology, one of the most prestigious university in china, and co - developed ion vacuum plating technique, multi - arc tin coating technique and twin - eccentric automatic fuel supply advancer in the recent years successively, and acquired many patents. the sag and scda series fuel supply advancer manufactured in one of our branch company : has adopted the advanced twin - eccentric blocks structure, thoroughly changed the traditional structurearc block, sliding block. the angle of advance is very accurate and precise, also perfect at position resume
由本總公司提前器廠生產的sag scdm兩大系列供油角度自動提前器,改變了目前提前器市場上的傳統結構,用先進的雙偏心式結構,代替了二十年一貫制的弧形塊滑塊式結構,具有提前角特別靈敏,恢復性好,怠速運轉無噪音等優點,克服了提前器擺動大漏油等常見缺陷。They not only inherit the advantages of bezier curves and b - spline curves, also can be used to represent straight lines precisely and some remarkable transcendental curves precisely, such as circular arc, ellipse, cardioids and twisted pair line etc. especially, the uniform t - b - spline curve of three degrees is smoother than b - spline curve and c - b - spline curve of the same order
此外由於它們還具有三角函數的優點,故既可以精確表示直線段、二次多項式曲線段又可以精確表示圓弧、橢圓弧等二次曲線以及心臟線、雙紐線等超越曲線。特別地, 3次均勻t - b樣條曲線曲面比同階均勻b樣條( c - b樣條)曲線曲面具有更高的光滑度。An approach of representing circular arcs with nurbs of degree two was given by others, but it was based on the hypothesis that the arc angle is less than n
李強等在已知三個型值點時,通過直接給出控制頂點和權因子的方法得到用二次nurbs精確表示圓弧的方法,但只給出圓弧的圓心角小於的情況。In this article, we use idea of turning dispersion into convergence and put all the well ' s points into the same unit net to think about it. and answer three questions of the distribution of well drilling by the way of searching for groups of points. fincite - step - searching underthe condition of translationg fcoordinate system or revolving coordinate system. to first question. we find two algo - rithms and make use of data that is given to find the solution. we seek coorlinate of net point is co. 361, 0. 461 ) and mostly four old well ' s points are utilized at the same time by first algorithim, which are no. 2, no, 4, no. 5, no. 10. by second algorithm, we rechon the coordinate of net point is co. 390, 0. 505 ). and that mostly four old well ' s points are utilizld which are no. 2, no. 4, no. 10. to second question, we turn it into the first question by angling awt the center of net point. we seek that mostly six old well ' s points are utilized at the same time, which are no. 1, no. 6, no. 7, no. 8, no. 9, no. 11, when net is angled 0. 78 radian. and net point is translated to ( 0. 75, 0. 076 ) ( at nwe coordinate system ). to third question, wefind a necessary and sufficient condition and affer algorithms, at last, we analyse algorithms
運用化分散為集中的思想,把所有的井點都放在同一個單位網格內考慮.在坐標可平移、旋轉的條件下,利用尋找點群、有限步驟搜索法,對鉆井布局的三個問題進行了解答.對問題一,給出了兩個不同演算法.並對題目提供的數據進行了求解,演算法1得到的結點為( 0 . 361 , 0 . 461 ) ,最多有4個舊井點被同時利用,它們是第2 、 4 、 5 、 10個井點;演算法2得到的結點為( 0 . 390 , 0 . 505 ) ,最多有4個井點被利用,它們是第2 、 4 、 5 、 10個井點.對問題二,以結點為中心旋轉一定的角度后,歸結為問題一進行求解,求解結果為當網格傾斜角為0 . 78弧度(相對原坐標系) ,結點平移到( 0 . 75 , 0 . 076 )點(在新坐標系下) ,可被同時利用的最多舊井點為6個,它們是第1 、 6 、 7 、 8 、 9 、 11個井點,對問題三,我們給出了充要條件,並給出了演算法.最後還分析了演算法的優劣性With the brand of " jintong stone ", our marble and granite are rewarded the title of " stone reliable products " by national stone quality test center, and they can be applied to high - grade office building, hotel, residence, villa
如石材異型材圓柱弧型板加工車間,以"金通石材"為品牌的花崗石大理石產品及享譽惠州及珠江三角洲,被國家石材質量檢測中心授予"石材產品質量信得過企業"榮譽稱號。Separated dispersion disgs create higher efficiency and productivity / specially designed discs have six guiding arcs, each arc has a 45 degree angle to the disc surface which allows the pearls a 45 degree centrifugal friction and impact
分離式葉片創造高效率、高產能/特殊設計的導珠弧與葉片平面成45度,帶動磨珠作45度離心角的磨擦碰撞。It builds a relative coordinates based on the jumping - off point of circular interpolation as its origin, caculates the sine and cosine of the angle formed by x axis and the line which connects the origin and the centre of the circle, then gets the coordinates of the centre in the relative coordinates, and enduces a uniform fomula, which is easy to program in computer
摘要用圓弧插補起點作為相對坐標系原點,連接圓弧起點和圓心,求出該連接線和相對坐標x軸的夾角的正餘弦值,由此解出圓心在相對坐標系的坐標,並得到一個統一的計算公式,易於計算機編程實現。The thesis studied the change of stress triaxiality in the four - point curved beam made in 16mnr with arc - tip crack and its important effect. in the beam, the points of peak value of stress triaxiality distribute along a line, whose direction is well consistent with the fracture direction got by experiment when so > 3mm
在圓弧裂紋試件中,裂尖附近的三軸度較高的點呈脊線分佈,按照脊線分佈擬合計算得到的三軸度脊線夾角在偏心距so 3mm時與試驗測得的斷裂角符合較好,這種情況下試件發生的是韌窩型斷裂。The parabola traces of shot based on goal angles corresponding to different velocity area are outlined schematically, and the relationship between hollow - shot probability and the shot distance, the height of the shot point are decussed
根據中框投籃角分析了不同投籃速度區間對應的投籃弧線,還對空心中框率和投籃距離及投籃點高度間的關系作了討論。The results show that the study on transimittivity can be done using the points along the circle arc centered at the roadway or the boring core, the transimittivity at the joints along the right angle ray can be studied using one single point behind the joint, and the studies on transimittivity can be done on any reasonable radius value of the roadway or boring core in a typical rock
分析結果表明:單節理后各節點透射率的研究,可以通過單節理后某一以巷道或鉆孔中心為中心的圓弧上各節點的透射率來展開;射線角為90的射線上節理后各節點透射率的研究,可以通過節理后某一節點的透射率來展開;單節理的透射率的研究可以在一個固定半徑值的巷道或鉆孔的模型上用一種典型的巖石進行。Hui from the acae department. while currently most computer games often resort to equip characters with heavy amour or tight clothes to simplify the characters movements, the new technique allows designers to dress characters in long gowns or robes using a model that resembles the wavy movements of the real cloth. curvair also provides a series of characters, models of chinese buildings, and a facial expression editor for easy construction of computer games in chinese style
弧飛系統在角色塑造時採用了中大自動化與計算機輔助工程學系許健泉教授研發的技術雙曲線軸心表示法( curve - pair based axial representation )來模擬衣服布幔的移動,角色無需再以硬繃繃的盔甲示人,除可輕易創造出如小女一般有飄逸衣服效果的角色,弧飛包含了一系列工具有助游戲設計員快捷地打造出華麗的中國式宮廷建築、古代英雄及其表情等等。分享友人