这意味着你必须指出,立体图形的底部的曲面，和立体图形的顶部曲面？
So, that means you have to figure out what's the bottom surface of your solid, and what's the top surface of your solid?
单位时间内的流量就是一个小立体，它的底是曲面上的一块，它的高由向量场给出。
Well, it is the stuff that lives in a small box whose base is that piece of surface and whose other side is given by the vector field.
面体是一种可以对空间进行限定的立体构成方式，曲面或平面空间是线体的两种体现形式。
Surface is a kind of space can be defined three-dimensional formation, surface or plane space is the two forms of the line body.
介绍了利用安装于三坐标测量机CMM上的激光测头测量自由曲面的立体视觉检测系统。
A stereovision inspection system for measuring free-form surface is introduced which consists of coordinate measuring machines (CMM) and a laser probe.
在立体造型系统中，旋转曲面是最常用的曲面。
Revolution surface is most often used in solid modeling system.
该算法直接平滑曲面在平行光照射下的图像，然后通过光度立体技术反求出光顺后的曲面。
We smooth the photometric image of surface by some existing method in digital image processing, then get an approach to original surface by the photometric stereo technology.
在工程制图中，某些曲面立体相贯时的相贯线的形状非常复杂，以及一些立体模型难以想象。
In engineering drawing the intersectional lines which are formed by spatially intercropping of some curved surfaces have very complicated shape and unthinkable tridimensional model.
利用求补色立体图屏幕坐标原理，采用浮动水平线法来绘出空间曲面的透视投影图形。
Based on the screen coordinate theory of solid diagram of complementary color, a perspective projection diagram of space surface is drawn using floating horizontal line method.
使用二个双曲线(三个接收机)系统能获得2d目标位置，当使用最少三个双曲面(四个接收机)系统能实现完整的3d立体目标定位。
Using two hyperbolas (three receivers) the system can obtain 2d target position, while using at minimum three hyperboloids (four receivers) the system can achieve full 3d target locating.
可在平面或异型立体、曲面等承印物表面，实现全彩色图文转印，无需套色，图像清晰美观，色彩鲜艳历久弥新。
Can be shaped in the plane or three-dimensional, curved surface such as printing, transfer printing full-color graphics, no color printing, the image clear and beautiful, colorful and timeless.
可在平面或异型立体、曲面等承印物表面，实现全彩色图文转印，无需套色，图像清晰美观，色彩鲜艳历久弥新。
Can be shaped in the plane or three-dimensional, curved surface such as printing, transfer printing full-color graphics, no color printing, the image clear and beautiful, colorful and timeless.
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