cone
[
i
k8un
]
(¼øÀ§:
6490
- ´ëÇÐ ¼öÁØ)
¶æ
¿ø»Ô, ¿øÃßÇü
Mean
The surface generated by a straight line, the generator, passing through a fixed point, the vertex, and moving along a fixed curve, the directrix.
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conoid [Çü]
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