直三面角 的英文怎麼說
中文拼音 [zhísānmiànjiǎo]
直三面角
英文
rectangular trihedral angle- 直 : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
- 三 : Ⅰ數詞1. (二加一后所得) three 2. (表示多數或多次) more than two; several; many Ⅱ名詞(姓氏) a surname
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 角 : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
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Until about 1450 spherical trigonometry consisted of loose rules based on greek, hindu and arabic versions.
差不多直到1450年球面三角的內容由一些不嚴謹的法則組成,這此法則的基礎是希臘、印度和阿拉伯譯本。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。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。One of the stars shall be bigger than the others, with its circumcircle s diameter being 310ths of the height of the flag, and shall be placed in the left ; the four other stars shall be smaller, with their circumcircle s diameter being 110th of the height of the flag, encircling the big star on its right in the shape of an arc
旗面為紅色,長方形,其長與高為三與二之比,旗面左上方綴黃色五角星五顆。一星較大,其外接圓直徑為旗高十分之三,居左;四星較小,其外接圓直徑為旗高十分之一,環拱于大星之右。Apply computer chip to control the circuit ; omron opto - elecrtonic control - ler and panasonic and mitsubishi inverter have stable performance, high precision, rapid reaction and long life - span ; the controlling plate applies tactile operation board which is handled easily ; vertical structural screen is easy to adjust the vertical printing pressure so as to ensure the quality of printing ; the frame lift is driven by electrical motor and installed with imported linear guide rails, of which the speed - adjust device, scraper and scraping blade can be adjusted within15 to 45 and can be set for many times so as to repeatedly printing with good precision and output, the flat bed is made of 2mm stain - less steel plates which are flat, smooth and indeformable ; it is also equiped with micromatic setting device in order to ensure the precision of multi - color overprint and auto air - intake device to ensure strong adsorption
採用電腦板控制電路,歐姆龍光電控制器,松下,三菱變頻器,行直穩定.精度高,反應快,壽命長,控制面板採用觸摸式操作面板,操作方便,六式結構型網版垂直升降印刷壓力可調保證印刷質量,機架升降採用電機驅動安裝進口直線導軌,刮刀、回墨刀可在15一45角調整,可設置多次,重復印刷保證產品精度.平臺板採用2毫米不銹鋼板製作,平整光滑不變形配有微調裝置,確保多色套印精度,配自動吸氣裝置,確保強有力的吸附。The beyond is the simple notation of serial number of pricker, totaled 7 digits of codes, in which the first digit represents the diameter of needle - bar of pricker, the second digit represents the siding of triangle side on functional section of pricker, the third digit represent the length of functional section of pricker, whereas in standard notation, it represents the distance from needlepoint to gradual deflating small port ( lower port ), the fourth digit represents the total length of pricker, which is the distance from the inside of bending helve to the needlepoint, the fifth digit represents the total quantity of dents on the cording of functional section, and the sixth digit represents the model of barb on functional section, while the seventh digit represents the distance between barbs on functional section
以上為刺針編號的簡單寫法,共7位代碼,第一位是刺針針桿的直徑;第二位是刺針工作段三角面的邊寬;第三位是刺針工作段的長度,同標準寫法所不一樣的是針尖到漸縮錐小口(下口)的距離;第四位是刺針的總長度,按彎柄內側至針尖的距離;第五位是工作段棱上的總齒數;第六位是工作段上鉤刺的型號;第七位是工作段上鉤刺與鉤刺之間的距離。3. through the realization of orientation picture showing in three - dimension, solve the problem that there is no way to show how rr, any located points exist in a little region when the located pictures shown in ichnography
為加強罐底定位軟體的分析功能,建立了以罐底為xy平面的三維直角坐標系,編制出相應的罐底三維定位軟體。It is mainly characterized in the triangular - lanceolate leaves which are green but white with dark green reticulation along the midrib and more or less truncate at base ; the flowers are erect on the rachis and half - opened ; the lip is tripartite, glabrous, more or less urceolate in side view ; the hypochile is saccate, ovoid and big while the epichile is relatively tiny, reflexed, undivided and transversely oblong or subreniform
本種之主要特徵為: ?呈三角?披針形, ?面?色,沿中?有白色斑塊, ?基多少呈截形;花直?于花軸,半張;唇瓣呈三段? ,平?無毛,側視時多少呈壺型;基段片囊? , ?形,巨大,先段片相對微小、反卷, ?再細?而呈橫向橢圓形。3 ) in shell of hyriopsis cumingii ( lea ), the prismatic layers and the nacreous layers are all composed of aragonite minerals, and aragonite crystallites in prismatic layers show obviously preferential orientation of [ 012 ] axis perpendicular to the shell layers, so it is considered that the orientation of aragonite crystallites in prismatic layers perhaps play an important role in deciding the orientation of aragonite crystallites in nacre and acts as one of template to resulting the formation of aragonite with [ 012 ] orientation perpendicular to nacreous layers in nacre
3 )與海水貝殼明顯不同的是,三角帆蚌稜柱層礦物相與珍珠層一樣皆為文石相,同時查明稜柱層中文石晶體具[ 012 ]軸垂直殼層面的明顯的擇優取向。本文認為,三角帆蚌稜柱層中文石晶體的擇優取向可能對珍珠層中文石晶體的擇優取向存在模板導向的作用,導致珍珠層[ 012 ]定向的文石晶體的形成。Its form up to a tenth degree polynomial is shown below.
下面寫出一直到十次多項式的帕斯卡三角形。9 greiner g, seidel h p. modeling with triangular b - splines
這也直接影響了三角b樣條曲面的視覺效果。They had a sinister expression, under an old cocked - hat like a three - cornered spittoon, and over a great muffler for the chin and throat, which descended nearly to the wearer ' s knees
他眼裡有一種陰險的表情,露出在翹起的三角痰盂樣的帽檐之下。眼睛下面是一條大圍巾,裹住了下巴和喉嚨,差不多一直垂到膝蓋。They had a sinister expression, under an old cocked - hat like a three - cornered spittoon, and over a great muffler for the chin and throat, which descended nearly to the wearer s knees
他眼裡有一種陰險的表情,露出在翹起的三角痰盂樣的帽檐之下。眼睛下面是一條大圍巾,裹住了下巴和喉嚨,差不多一直垂到膝蓋。The following is some main content of this thesis : structure respect : a structure of parallel driven simulating table with three apex of right triangle supporting was proposed on the basis of use for reference many structures of simulating table. its movement postures of space and surtax movements are computered and analysed, and adopted matlab software perform dynamic simulation to it. the respect in machinery design : the structure of upper and subjacent platforms for simulating table were designed
本論文從模擬轉臺的整體來考慮,對模擬轉臺的各個部分進行了研究和探討,下面是本論文的一些主要內容:結構方面:在介紹了多種轉臺結構的基礎上提出了採用直角三角形三點支撐的並聯驅動模擬轉臺,對其空間運動姿態及附加運動進行了解算和分析,並採用matlab軟體對其進行了動態模擬。The effective reflection area of a cubic corner reflector is defined, it is testified for the cubic corner reflector that the ray reflect from this prism is not parallel with the ray incident on the corner of undersurface of this prism, the effective reflection area is calculated in the case of the ray incident on the undersurface of this prism vertically, the acreage of the effective reflection area is two thirds as that of the undersurface of this prism
定義了立方角錐棱鏡的有效反射區,證明了立方角錐棱鏡底面角部區域(即非有效反射區)入射光與出射光不平行,並且在入射光垂直棱鏡底面入射情況下計算得有效反射區的面積為底面的三分之二。In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future
本文結合重慶市大渡口區「三木花園」開發建設項目,從地下空間靜力結構穩定性分析角度出發,針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米,高7 . 5米的地下隧道這一具體工程情況,採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算,探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響,通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況,從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律: ( 1 )在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖( ux 、 uy )以及應力等值線色譜圖( _ 1 、 _ 2 、 _ ( xy ) )等; ( 2 )相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ ( xy )對比分佈曲線; ( 3 )不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ ( xy )的對比分佈曲線等,為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。First, introduce the reasons and character of current banking m & a, then summarized the former studies of the three ways of m & a to efficiency gaining : size versus size economy, m & a versus banks efficiency, and m & a versus shareholders wealth. then introduce the research approaches of m & a efficiency gaining, especially the approaches of m & a versus banks efficiency, such as parametric frontier approaches and non - parametric frontier approaches. in the following, through roe model and dea model to study the relations between size and efficiency, finding : middle size banks efficiency is higher, larger banks have n ' t scale economy, small banks have low em, and through directly analyzing m & a efficiency of four commercial banking m & a case in china, finding : the past - merged efficiency of shanghai pudong development bank has been improved, and others have been deduced, but after three years the efficiency increased little by little
首先,分析了當前銀行並購的主要原因、特徵以及我國銀行並購的現狀與特點;接著對銀行效率水平的概念進行分析,綜述了國外對銀行並購與效率獲利的三方面的研究(考察銀行的規模與效率這種間接方式、比較並購行並購前後的效率以及並購行與非並購行的效率和考察上市銀行並購前後股東財富的變化這兩種直接方式)的有關文獻;再次對銀行並購與銀行效率獲利的分析方法進行了介紹,其中詳細地研究了前沿分析法:參數分析法和非參數分析法,並指出了這些方法的特點;然後運用財務比率分析法和dea方法對我國商業銀行規模與效率從間接角度對銀行並購產生的效率獲利進行了實證研究,結果發現:中等規模的商業銀行的效率最佳,而小規模的銀行的em值較低,同時大規模的商業銀行的規模無效;同時利用我國已發生的四個銀行並購案從直接的角度對我國商業銀行並購的效率獲利進行分析,結果發現:除上海埔東發展銀行在並購後效率提高,其他三家銀行並購后的效率都有所下降,但並購后第三年效率又逐漸回升。In new state standard < < machining center testing items - accuracy testing > > [ refering to iso / dis10791 ], issued in 1999, the test of straightness accuracy has been changed. now it becomes more scientific and reasonable. in old state standard, the testing of straightness accuracy of kinetic part only focus on vertical and " horizontal plane, and it only includes two linear errors ; but in new state standard, we not only measure those two linear errors, but also measure the errors of pitching, deflecting, and inclining of the kinetic part, so it includes two linear errors and three angle errors
1999年公布的國標《加工中心檢驗條件?精度檢驗》 (參照iso dis10791訂)中,直線度等項的檢測做了更為科學的實質性更改,坐標移動的直線度以由只檢測垂直面和水平面內的兩個平移線值誤差,改為用移動坐標方向之外的另兩個坐標的平移線值誤差和移動部件繞三個坐標軸的俯仰,偏擺和傾斜三個角值誤差綜合表徵。If the road is not straight and level, stand the warning triangle where an oncoming driver will see it before he comes to any bend or hump in the road
如果路面不夠平直,三角形警告牌的位置,應該是從后而至的駕駛人可以在彎位或隆起路面之前看得見的地方。Inside the windows three mirrors are placed mutually perpendicular to one another resembling the corner of a cube. side effect
窗內擺放了三面互相垂直的平面鏡,形狀就如正方體的一角。分享友人