Although left-handed and right-handed coordinates are the most common systems, there is a variety of other coordinate systems used in 3-D software.
虽然左手系和右手系都是很常用的系统，但是也有很多其他种类的坐标系用于3-D 软件。
The map coordinates or an image of the 'target' would then be placed in an envelope and handed to the viewers.
接下来，一个地图坐标或一幅“目标”的图像被放进一个信封里，交给这些遥视者。
The map coordinates or an image of the 'target' would then be placed in an envelope and handed to the viewers.
接下来，一个地图坐标或一幅“目标”的图像被放进一个信封里，交给这些遥视者。
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