查询词典 intersecting lines

The English sonnet has a very exact structure. It must have fourteen lines, with three groups of four lines that set up the subject or problem of the poem. The sonnet is resolved in the last two lines of the poem.

这种英式短诗有十分苛刻的文体，每首诗必须有十四行，共有三段，每段四行，且须选立题材，或提出问题，并在最后两段作答。

Upstream has formed an annual output of 300,000 tons has a high-quality silicon mines, when the glass holding company Silicon Mine Ichang limited liability company is a large production base of raw materials of silica, there are two domestic beneficiation of silica sand advanced production lines, annual output of fine quartz sand 300000 t / a, is South Africa's largest silica sand base; mid-stream has a 450t / d, 500t / d float glass production lines and 600 / t self-cleaning glass substrate production line of the article, an annual output of float glass production capacity of 10 million weight boxes; downstream has a glass cover, TiO2 thin-film self-cleaning glass, tempered glass, insulating glass, such as a number of glass deep-processing production lines, processing 3 million square meters of glass products.

上游已形成拥有年产30万吨的优质硅矿，控股公司宜昌当玻硅矿有限责任公司是大型硅质原料生产基地，建有2条国内先进的硅砂选矿生产线，年产石英精砂30万t/a，属中南地区最大的硅砂基地；中游拥有450t/d、500t/d浮法玻璃生产线和600/t自洁玻璃基片生产线各一条，年产浮法玻璃1000万重量箱生产能力；下游拥有强化玻璃盖、TiO2薄膜自洁玻璃、钢化玻璃、中空玻璃等多条玻璃深加工生产线，年加工玻璃制品300万平方米。

In spatial analytic geometry,a spatial curve is an intersecting line of two curved surfaces.

在空间解析几何中，空间曲线是两曲面的交线，在空间曲线中消去一元，即得投影柱面。

According to spatial analytic geometry,the mathematical model of intersecting of pipe and cone was established.

利用空间解析几何的原理建立了管锥相贯数学模型，用参量方程描述了管端相贯线焊接坡口的几何形状，该数学模型可应用于三轴联动火焰数控切管机。

Based on analytic method and set operation method,the geometric characteristic s of the intersection and union of two or three cylinders with their axes intersecting perpendicularly were studied.

采用解析方法和集合运算方法，首先对柱柱正交中的交集体和并集体的几何特性进行了研究，推导出了它们的表面积和体积的解析表达式。

The expressions of dihedral angle and cutting angle of the intersecting groove are deduced by way of space analytical geometry.

利用空间解析几何原理推导了多管、板相贯坡口的两面角和实际切割角的表达式，建立了切割多管、板相贯坡口的数学模型。

First the math theory of machining simulation is studied, and the set structure of NC machining simulation system whose components, including time, input, output and so on, are defined. Hereby we set up the hierarchy structure, the logical structure, the static model and the dynamic model of simulation system. The construction method of sweep entity of cutter and rotation parts is researched, and their differential geometry invariants are calculated. NC code is unscrambled, and the recursion division arithmetic of time segment is put forward, which is the driven data of the movement or rotation parts. The CLDATA should be interference-free. To examine if there is interference between cutter flank and the work piece, an arithmetic that discussed the existence of intersecting curve between them is put forward. To examine if there is interference between two turrets, an arithmetic that discussed the existence of intersection set between two polygons is put forward.

首先研究加工过程仿真的数学基础，然后定义数控加工仿真系统的集合结构及时间集、输入集、输出集等概念，建立加工仿真的层次结构和逻辑结构，阐述双刀车削仿真系统的静态模型和动态模型建立方法，分析刀具扫描体和旋转部件扫描体的建立方法及其微分几何性质；研究NC代码解读技术和双刀加工时间段递归子分划技术，为驱动各仿真单元作数据准备；通过讨论后刀面和工件表面交线的存在性判断刀具后刀面与工件间是否干涉，通过求多边形的交集判断刀架与刀架是否干涉。

When gears are to be used to transmit motion between intersecting shaft, some of bevel gear is required.

当齿轮是用来传递运动之间的交叉轴，其中有些圆锥齿轮的需要。

Fruit trees and flowers, birds and animals, shimmering tiles, and the gleam and murmur of running water—these are the vibrant and delicate substances from which, like a beautiful carpet, the Islamic garden is woven.Indeed, Islamic carpet design and garden layout go hand in hand.Garden carpets depict in a stylized manner the chahar bagh, or fourfold garden with its intersecting axial watercourses surmounted by a central fountain.In addition, they depict symbolically the vegetation planted in actual gardens:the shade-giving plane tree, identified with the Tuba tree in the Quran; the cypress representing death and eternity; and fruit trees standing for life and fertility.The central cartouche can interpreted as a platform, which in real gardens was often surmounted by a pavilion.These form the basic and timeless design formula of the Islamic garden—one or more quadripartite sections defined by narrow water courses—which has its roots in ancient Persia where the archaeological remains of Achaemenid palaces trace the outlines of pavilions overlooking carved stone channels.

果树和花卉，鸟兽，闪烁瓷砖，以及闪光和杂音的自来水-这些都是充满活力和微妙的物质，像一个美丽的地毯，伊斯兰园林woven.indeed ，伊斯兰地毯设计与园林布局齐头并进hand.garden地毯描绘在程式化地察哈尔巴格，或四倍花园与其相交轴水道克服了由一个中央fountain.in此外，他们还描绘象征性的植物种植在实际花园：耐荫给予平面树，确定与大号树在可兰经；桧代表死亡和永恒；栽果树，站立，生活和fertility.the中央cartouche可以解释为一个平台，而在真正的花园往往是克服由pavilion.these形式基本和永恒的设计公式伊斯兰花园式的一个或一个以上的四方节所界定的狭窄水道-其中有它的根在古代波斯，而考古遗迹的阿契美尼德宫殿追查纲要凉亭俯瞰石刻渠道。

This paper introduces the drawing method of utilizing center projection to make the common position and the declined intersecting line of the declined cone .

介绍了用投影法求作一般位置平面与斜锥体的截交线的作图方法，供同行参考。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。