evolute
'i:vәlu:t
基本解释
n. 渐屈线
a. 展开的, 反卷的
英文释义
n. A curve from which another curve, called the involute or
evolvent, is described by the end of a thread gradually wound upon the
former, or unwound from it. See Involute. It is the locus of the
centers of all the circles which are osculatory to the given curve or
evolvent.
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