除尘

Aspirate \As"pi*rate\, v. t. [imp. & p. p. {Aspirated}; p. pr. &
vb. n. {Aspirating}.] [L. aspiratus, p. p. of aspirare to
breathe toward or upon, to add the breathing h; ad + spirare
to breathe, blow. Cf. {Aspire}.]
To pronounce with a breathing, an aspirate, or an h sound;
as, we aspirate the words horse and house; to aspirate a
vowel or a liquid consonant.