查询词典 intersecting surface

In order to disclosure the reason why the electrocatalysis activeness and selectivity droped after being used several hundred hours continuously, the x-ray diffraction, scanning electron microscopy and energy dispersive spectroscope have been used to characterize the surface condition variations of Monel metal. The results indicated: Monel metal belongs to the Cu-Ni alloy around the electrolysis experiment.And after being used for 600hr, the surface layer element composition and geometry distribution of the alloy changed, namely in the alloy the Cu element /which superficial free enthalpy was smaller,"concentrated" to the alloy surface,and formed one kind of marble structure microcrystallite.Thus the electrode surface becamed rough a

为了揭示蒙乃尔合金阴极在连续使用数百个小时后电催化活性剂选择性下降的原因，采用X射线衍射仪、电子扫描电镜和电子能谱分析仪对电解实验所用的蒙乃尔阴极材料在电解实验前后的表面状态进行了表征，结果表明：所使用的蒙乃尔合金阴极材料在电解实验前后均属于Cu-Ni合金，使用600hr后，由于表面层元素组成和几何排布发生了变化，即合金中表面自由焓较小的Cu元素向合金表面&富集&，形成一种大理石结构的微晶，表面粗糙、不均一，这是造成其对硝基苯电还原的催化活性及选择性随着使用时间延长而逐渐下降的主要原因，同时也为此类电极的修饰改进提供了方向。

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。

The unit of magnetic flux in the centimeter-gram-second system, equal to the flux perpendicularly intersecting an area of one square centimeter in a region where the magnetic intensity is one gauss.

麦克斯韦尔厘米－克－秒制的磁通量单位，即垂直贯穿磁强度为一高斯的一平方厘米面积区域的磁通量

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？