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equilateral adj.【數學】1.等邊的,等面的。2.兩側對稱的。短語...

equilateral hyperbola

Firstly a microstrip - fed microstrip patch antenna has been emulated and validated . on the base of this , the multi - band property of sierpinski equilateral triangle and squareness microstrip fractal patch antennas are carefully studied , and the effect of antenna ' s property by the permittivity , the size of patch , the order of the fractal and the decrease of fractal patches is depicted ; secondly on the base of analysis and comparison of performance of microstrip - fed semicircle and rectangle double - band microstrip patch antennas , warranty of dimension curtailment is offered ; finally expansion of band of those antennas above is discussed 在此基礎上,著重分析了微帶線耦合饋電的sierpinski等邊三角形微帶分形貼片天線以及sierpinski方形微帶分形貼片天線的多頻特性,給出了介質參數、貼片尺寸、分形的階數以及減少分形貼片數對微帶線耦合饋電的sierpinki等邊三角和sierpinski方形微帶分形貼片天線特性的影響;其次基于微帶線耦合饋電的半圓雙頻微帶貼片天線和矩形雙頻微帶貼片天線的性能分析和比較,提供了尺寸縮減的依據;最后對以上天線的頻帶擴展進行了探論。

There are 2 methods in dividing the surfaces : alternate division class i and triacon division class ii . alternate division is to divide the equilateral triangle into n2 smaller equilateral triangles by breaking each edges into n pieces and connecting the breaking points with lines parallel to the triangle edges 分解方法有兩種交錯分解法i類以及三十面分解法ii類,交錯分解法是將正多面體上的正三角形面每邊切成n份并把分解點連成和大正三角形的邊平行的直線,使正三角形面分解成n2個較小的正三角形面。

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 流體噪聲主要來源于輸出流量脈動,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回流,在配流盤上開設v型尖槽可降低因高壓回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,并對原有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。

Janos pach and rom pinchasi ( see [ 61 ] ) proved that any set of n points in strictly convex position in the plane has at most [ 2 ( n - 1 ) / 3j triples that induce unit triangles ( equilateral triangles of side length one ) , and any set of n points in convex position in the plane has at most n - 2 triples that induce unit triangles 平面中任一處于凸位abstract置的二一點集至多有2 。一4個三元組滿足:每一三元組均導出一個與t0全等的三角形.定理2 . 2 .給定一等腰直角三角形t0 ,平面中任一處于強凸位置的n一點集至多有二個三元組滿足:每一三元組均導出一個與幾全等的三煮形

But it also bring some important questions which affect the safety and economy running of the units , such as frequency regulation , long running with low loads , electric equipment and assistant equipment friction , oil wasting etc . the text apply differential increcent rate of equilateral discharge to analyze deeply the economy of hydro - power plant according to the practice data of the plant , putting forward the resolvation , providing indeed the theoretic feasibility investigation of engineering 但由此帶來的水電機組的頻繁調節、長時間帶低負荷運行以及電氣設備和輔助設備的磨損和油耗的增加等,都成為影響水電機組長期安全、經濟運行的不可忽視的重要問題。本文根據安徽陳村水電廠實際資料,運用等微增率方法對agc投入后水電站廠內運行經濟性作了深入的分析,提出了解決辦法,為在工程上真正實現提供了理論上的可行性研究。

They often solve the problems with two methods . the first one is disturbing and controlling the spurting water with a movable baffle - plate . the second is the proper arrangement of the sprinklers , ( such as isoceles triangle distribution , equilateral triangle distribution , square distribution , and rectangle distribution ) 噴灌的均勻度不高的問題由來已久,國內外的噴灌技術研究人員為解決該問題一般從“干擾、控制從噴嘴噴出的水舌” (利用擋水板和導流板來實現)與“合理的安排噴頭的組合形式” (等腰三角形布置、等邊三角形布置、正方形布置、長方形布置)上來。

The current trends of this field is to acquire the current density of dipole distribution rather than a few dipoles . based upon that , a new model was proposed - dipole layer localization method ( dllm ) : spherical dipole layer was used as source model , on which dipoles were distributed by equilateral triangles ; three concentric inhomogeneous sphere was used as head model , which contains scalp , skull and cortex with different conductance . the dipole distribution and scalp potential tomography were obtained with singular value decomposition ( svd ) 鑒于該領域的研究趨勢已從求取少數偶極子過渡到偶極子分布密度的獲得,本文提出了新的模型? ?偶極面定位方法( dipolelayerlocalizationmethod , dllm ) :以等邊三角形均勻分布的偶極子構成的偶極面(球面)作為源模型;包括頭皮、顱骨和皮層的三層同心介質球作為頭顱模型,運用奇異值分解來求解逆問題,從而獲得偶極子分布和頭皮電位分布,實現三維成像。

A kaleidoscope creates stunning visual effects by reflecting the edges of the mirrors and the space enclosed between them repeatedly . mirrors arranged in an equilateral triangle , a square or a regular hexagon behave in a similar manner 萬花筒將旁邊的三角形平面及相關的空間利用鏡子不斷重覆,有此功能的鏡子組合包括三角形正方形和正六邊形等。

In order to obtain the image of absolute point , we design two kinds of planar model . and they are equilateral - polygon planar model and planar model that containing more than two circles 為了從圖像中獲得圓環點的圖像,我們設計出二類不同的平面模板:正多邊形平面模板和包含二條以上圓曲線的平面模板。

The triangle , made up of a bar of round steel bent into the shape of an equilateral triangle with one corner open , is struck with a short metal rod 三角鈴是用一根鐵條,彎成等邊三角形,而其中一角并沒有銜接。演奏時,用一條繩把它吊起,拿一根小鐵棒敲響。

As i implemented the tests for equilateral and isosceles triangles , i realized that i was using only the delta value for calculations in right triangles 當實現對等邊三角形和等腰三角形的測試時,我認識到我只用了delta值來用于直角三角形的計算。

Under internal pressure , equilateral frustum shell tends to wrinkle at the equator , and the circular degree of the obtained vessel is poor 摘要等邊雙圓錐臺殼體在內壓的作用下,赤道環焊縫處易產生失穩起皺,且脹形后所得容器圓度較差。

It looks like an equilateral triangle . the three bright stars are procyon in canis minor , sirius in canis major and betelgeux in orion 它的形狀接近等邊三角形,由小犬座主星南河三大犬座主星天狼星及獵戶座主星參宿四所組成。

Perhaps i will want to add a “ fuzz factor “ with deltas for determining whether i have an isosceles or equilateral triangle , respectively 也許我會加入“誤差因素” ,和delta一起來確定是等腰三角形還是等邊三角形。

Equilateral triangle that appears to be carved into marble . the triangle contains a circle ; both are bisected vertically 像是鐫刻在大理石上的等邊三角形。三角形中有一個內接圓;圓和三角形都被豎直等分。

Kaleidoscopes usually consist of 2 to 3 mirrors and their cross - sections are mostly in the form of equilateral triangles 常見的萬花筒切面為等邊三角形,由兩塊到三塊反射鏡所組成。

If you test by lengths of the triangle s sides , possible types are equilateral , isosceles , or scalene 如果您通過三角形的邊進行測試,可能的類型是等邊、等腰或不規則三角形。

It passes through the n atom and through the center of the equilateral triangle 它通過n原子及三個h原子組成的等邊三角形的中心。

A plane pattern of equilateral - dodecagon based camera self - calibration 基于正十二邊行平面模板的攝象機自標定