单词 | swing-conic |
释义 | > as lemmasswing-conic c. Dynamics. In terms used by Clifford for various geometrical figures or lines having relation to the oscillation of a body, as swing-conic, swing-ellipse, swing-ellipsoid, swing-quadric, swing-radius. ΚΠ 1887 W. K. Clifford Elem. Dynamic i. iv. 17 The second moment of an area in regard to any line, divided by the area itself, is the square of a length which is called the swing-radius of the area in regard to the line, or of the line in regard to the area. 1887 W. K. Clifford Elem. Dynamic i. iv. 24, 34. < as lemmas |
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