Construct rotating nephroid and three-cusped epicycloid while remaining orthogonal to each other.
作
转的肾脏线
转的三瓣
摆线，且彼此维持正交。
轮线,摆线Construct rotating nephroid and three-cusped epicycloid while remaining orthogonal to each other.
作转的肾脏线转的三瓣摆线，且彼此维持正交。
The envelope of moving line on the hypocycloid plane may be an epicycloid or cardioid and the...
摆线逆运动中与动切线成定角的直线,其包络也是
周渐开线.
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