n. 令人扫兴的人, 增湿器, 阻尼器

[化] 减震器

Damp \Damp\ (d[a^]mp), a. [Compar. {Damper}; superl. {Dampest}.]
1. Being in a state between dry and wet; moderately wet;
moist; humid.

O'erspread with a damp sweat and holy fear.
--Dryden.

2. Dejected; depressed; sunk. [R.]

All these and more came flocking, but with looks
Downcast and damp. --Milton.

damper \damp"er\ (d[a^]m"p[~e]r), n.
That which damps or checks; as:
(a) A valve or movable plate in the flue or other part of a
stove, furnace, etc., used to check or regulate the
draught of air.
(b) A contrivance, as in a pianoforte, to deaden vibrations;
or, as in other pieces of mechanism, to check some action
at a particular time.

Nor did Sabrina's presence seem to act as any
damper at the modest little festivities. --W.
Black.