線三角 的英文怎麼說
中文拼音 [xiànsānjiǎo]
線三角
英文
wire triangle-
Then one side of each of these triangles is brought into a common alignment.
這些三角形的一邊會排成一條共同的直線。Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976
以一般高潮線反映現代黃河三角洲沖淤演變時，從1976年黃河改道清水溝流路入海到2000年，整個黃洞三角洲凈造陸201 . 5km ~ 2 ，淤積有逐漸變慢的趨勢，甚至出現凈蝕退的年份；刁口河嘴大量蝕退，蝕退速率開始快速，后來逐漸變慢；清水溝河嘴大量淤積，淤積速率開始迅速，后來逐漸變慢，甚至出現凈蝕退；清水溝河嘴南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。In two - dimensional space, the sibson coordinate value is the ratio between the areas of voronoi cells, and the voronoi cell is made up of the perpendicular bisector of triangles
在二維空間中sibson局部坐標值是voronoi單元的面積之比， voronoi單元是由三角劃分得到的三角形的中垂線相交構成，計算簡單直觀。On each step of iteration, no trigonometric function is used, and only four multiplications for cardioid curve are required
迭代過程中避免了三角函數的運算，每步僅需4次（心臟線）乘法運算。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。The catalan numbers also count the number of ways in which an n-gon can be dissected into triangles by nonintersecting diagonals.
加泰隆數還數計有多少方式來將多邊形用不相交的對角線劃分成三角形。Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle
流體噪聲主要來源於輸出流量脈動，造成輸出流量脈動的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流，在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲，本文以截流作用和液體的可壓縮性為理論依據，以matlab語言為工具，對原配流盤上的v型尖槽進行了理論計算，繪制出p - t圖線，分析了它的不足，並對原有v型尖槽進行了優化設計，得出了v型尖槽的最佳幾何尺寸：配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ，槽長5mm ，槽的橫截面為等邊三角形。The characteristic for a class inscribed triangle of conic section and it ' s application
圓錐曲線一類內接三角形的性質及其在作圖中的應用Extracting terrain features from contour maps based on united - delaunay - triangulation model
三角網的等高線地形特徵提取研究Since pixel - level contrapose pixel coordinate, trigonometric function must be used to translate polar coordinates to pixel coordinate when the curve is described by polar coordinate. so research is very little on algorithms for generating this sort of curve by now
由於逐點是針對象素坐標系而言，而對極坐標系下描述的曲線，在轉換到象素坐標系時要用到三角函數運算，因此目前很少提到對極坐標曲線生成演算法的研究。Secondly, the various conic arcs and conies are generated by the rational triangular bezier and the b - spline method in polar coordinates system
其次，給出圓錐曲線弧及其補弧的三角有理b zier表示；以及任意角度二次曲線弧的極坐標b樣條表示。Construct the part of the tangent of the deltoid intercepted by the curve
2三角星形線的兩條互相垂直的切線的交點在哪裡Construct two mutually orthogonal tangents of the deltoid. where do they meet
三角星形線的兩條互相垂直的法線的交點在哪裡This form of construction is strong and has the additional advantage of enclosing a given volume with the least possible use of materials. geodesic domes are actually derived from regular polyhedra. those that are derived from the dodecahedron and the icosahedron have joints where 5 distinct triangles meet
由正十二或正二十面所建而成的短程線圓頂特色是當中的一些接駁點由五個三角形組成而由正八面體所建立的圓頂則可以分割成四分之一或四分之三個。Computation of electrodynamic in the three - phase conducting wires of overhead transmission line under equilateral triangle arrangement
架空輸電線路三相導線正三角形排列時的電動力計算Bloom s bodyguard distribute maundy money, commemoration medals, loaves and fishes, temperance badges, expensive henry clay cigars, free cowbones for soup, rubber preservatives, in sealed envelopes tied with gold thread, butter scotch, pineapple rock, billets doux in the form of cocked hats, readymade suits, porringers of toad in the hole, bottles of jeyes fluid, purchase stamps, 40 days indulgences, spurious coins, dairyfed pork sausages, theatre passes, season tickets available for all tram lines, coupons of the royal and privileged hungarian lottery, penny dinner counters, cheap reprints of the world s twelve worst books : froggy and fritz politic, care of the baby infantilic, so meals for 7 6 culinic, was jesus a sun myth
布盧姆的衛兵們散發濯足節的貧民撫恤金235紀念章麵包和魚戒酒會員徽章昂貴的亨利克萊雪茄煮湯用的免費牛骨裝在密封的信封里並捆著金線的橡膠預防用具菠蘿味硬糖果黃油糖塊折疊成三角帽形的情書成衣一碗碗裹有奶油麵糊的烤牛排一瓶瓶傑那斯溶液購貨券四十天大赦236 。偽幣奶場飼養的豬做成的香腸劇場免票電車季票匈牙利皇家特許彩票237一便士食堂的餐券十二卷世界最劣書的廉價版：法國佬與德國佬政治學怎樣育嬰238幼兒學七先令六便士的菜肴五十種烹飪學耶穌是太陽神話嗎？Antennas are feed by 50ohm coaxial cable and feed networks are unnecessary. and then, tag antennas are analyzed and designed, which include plate balanced dipole antenna, triangle balanced dipole antenna and inductively coupled feed meander - line antenna. theory analysis and simulations are given and optimal results are achieved
然後，對標簽天線進行了分析與設計，分別對片狀對稱振子天線、三角形對稱振子天線、感應耦合饋電折疊線天線等天線形式進行了研究，給出理論分析和模擬計算，得到滿足設計要求的各種形式的標簽天線。The design abstraction is as follows : there is a memory core that has functions to push vertex to arrays ; there are four different types of arrays, and each one corresponds to gl primitives like lines, triangles, line strips and triangle strips
設計摘要如下：一個可把頂點推向排列的內存核心；四個不同的陣列，每個都可與gl原始元素如直線、三角、線條和三角條響應。On a fixed value theorem for directed areas of height triangles and its applications
高線三角形有向面積的定值定理及其應用On some fixed value theorems for directed areas in a triangle
關于切頂線三角形有向面積的定值定理及其應用分享友人