变度
行程不匀

Wabble \Wab"ble\ (w[o^]b"b'l), v. i. [Cf. Prov. G. wabbeln to
wabble, and E. whap. Cf. {Quaver}.]
To move staggeringly or unsteadily from one side to the
other; to vacillate; to move the manner of a rotating disk
when the axis of rotation is inclined to that of the disk; --
said of a turning or whirling body; as, a top wabbles; a buzz
saw wabbles.


Wabble \Wab"ble\, n.
A hobbling, unequal motion, as of a wheel unevenly hung; a
staggering to and fro.