[机] 斜盘板[凸轮]

Swash \Swash\, n. [Cf. {Swash}, v. i., {Squash}, v. t.] (Arch.)
An oval figure, whose moldings are oblique to the axis of the
work. --Moxon.

{Swash plate} (Mach.), a revolving circular plate, set
obliquely on its shaft, and acting as a cam to give a
reciprocating motion to a rod in a direction parallel to
the shaft.