a. 有齿轮的

[ adj ]
having cogs
<adj.all>
a cogged wheel

Cog \Cog\ (k[o^]g), v. t. [imp. & p. p. {Cogged} (k[o^]gd); p.
pr. & vb. n. {Cogging}.] [Cf. W. coegio to make void, to
beceive, from coeg empty, vain, foolish. Cf. {Coax}, v. t.]
1. To seduce, or draw away, by adulation, artifice, or
falsehood; to wheedle; to cozen; to cheat. [R.]

I'll . . . cog their hearts from them. --Shak.

2. To obtrude or thrust in, by falsehood or deception; as, to
cog in a word; to palm off. [R.]

Fustian tragedies . . . have, by concerted
applauses, been cogged upon the town for
masterpieces. --J. Dennis

To cog a die, to load so as to direct its fall; to
cheat in playing dice. --Swift.