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- A ruled surface of revolution formed by an edged circle as the guide element is proposed in the category of basic geometrical bodies. 摘要在基本幾何體的范疇內，提出一種以棱圓為導元素的直紋曲面。
- This article not only discusses the ruled surface features of uniparted hyperboloid and its application in archtecture engineering but also discusses the teaching of the ruled surface. 本文主要討論了單葉雙曲面的直紋性,指出它在建筑工程中的應用,并對直紋面的教學(xué)作了探討。
- The ruled surfaces were used to approximate the freeform surface of blade,attention was focused on the 5-axis plunge milling of blisk's tunnel. 針對整體葉盤(pán)等復雜結構件,從鍛造毛坯到最終零件加工成形,需要切除大量的多余材料的問(wèn)題,提出了一種開(kāi)式整體葉盤(pán)通道的五坐標插銑粗加工方法。
- Two new methods are presented for machining ruled surfaces.By means of adjusting the changing rate of straight generatrix, the first method can reform a general ruled surface into a developable one. 提出了2種加工直紋面的新方法．其中第1種方法通過(guò)調整直紋面上母線(xiàn)方向的變化規律，使之成為可展面，以便在加工中獲得無(wú)脊棱的光滑曲面；
- According to the thickness of the blade, variable distance offset curves of the shroud camber line and hub camber line were acquired, then the blade surface can be expressed by ruled surface. 按照葉片的厚度做蓋盤(pán)曲線(xiàn)和軸盤(pán)曲線(xiàn)的變距偏置曲線(xiàn),得到葉片曲面的直紋化表達式;
- The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces. 作者證實(shí)：?jiǎn)稳~雙曲面和雙曲拋物面是直線(xiàn)曲面。
- British colonies were ruled by governors. 英國的殖民地由總督統治。
- The characteristics and geometric rules of military optics astigmatism is analysed.Its mathematical model is built by computational geometry lofting surface method. 分析了軍用光學(xué)系統像散的特征及其幾何規律，運用計算幾何模線(xiàn)曲面的方法建立了像散的數學(xué)模型。
- director cone of a ruled surface 直紋面的準錐面
- double generator of a ruled surface 直紋面的二重母線(xiàn)
- singular generator of a ruled surface 直紋面的奇異母線(xiàn)
- CAGD for Building with Ruled Surface 計算機繪制曲面型房屋建筑
- The gas bubbled to the surface of the water. 氣體變成氣泡升上水面。
- Charles ruled England for 11 years. 查理一世統治英國11年。
- The surface of the liquid gradually crusted over. 液體表面漸漸地結了一層皮。
- The motor noise ruled out conversation. 發(fā)動(dòng)機的噪音使談話(huà)無(wú)法進(jìn)行。
- A breeze ruffled the surface of the lake. 一陣微風(fēng)吹皺了湖面。
- The Normans ruled England by right of conquest. 諾曼人征服了英格蘭成了統治者。
- A wave broke across the surface of the pool. 一個(gè)波浪從池水表面掠過(guò)。
- Don't allow yourself to be ruled by emotion. 不要感情用事。
