[计] 窗口

[ noun ]
a sloping edge on a cutting tool
<noun.artifact>

Bezel \Bez"el\ (b[e^]z"[e^]l), n. [From an old form of F. biseau
sloping edge, prob. fr. L. bis double. See {Bi-}.]
The rim which encompasses and fastens a jewel or other
object, as the crystal of a watch, in the cavity in which it
is set.