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在透视投影中观察者的眼睛所在的位置。
The location of the eye of the viewer in a PERSPECTIVE PROJECTION.
youdao
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耳朵：位置靠后且低，不能高过眼睛所在的水平线。
Ears set well back and low, not above level of eye.
youdao
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耳朵：位置靠后且低，不能高过眼睛所在的水平线。
Ears set well back and low, not above level of eye.
youdao