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发表于 2004-4-6 00:48:33
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来自 湖北武汉
回复: 【求助】请教Dip dd 指定方向问题
DIP, DIP DIRECTION指的是:Dip and dip direction assume that the x-direction corresponds to “East,”
y-direction to “North” and z-direction to “Up.” The dip angle is measured in the negative zdirection
from the global xy-plane. The dip direction angle is measured in the global xy-plane,
clockwise from the positive y-axis. The x-, y- and z-components of vector quantities, such as
forces, displacements and velocities, are positive when pointing in the directions of the positive x-,
y- and z-coordinate space.
附件为斜面与坐标关系的示意图 |
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