The envelope of moving line on the hypocycloid plane may be an epicycloid or cardioid and the...
摆线逆运中与切线成定角直线,其包络也是周渐开线.
The envelope of moving line on the hypocycloid plane may be an epicycloid or cardioid and the...
摆线逆运中与切线成定角直线,其包络也是周渐开线.
Construct rotating nephroid and three-cusped epicycloid while remaining orthogonal to each other.
作肾脏线和三瓣外摆线,且彼此维持正交。
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