单词	子集合取得
释义	子集合取得subsetting
随便看	picture element density picture element matrix picture element--pel picture element {pixel} picture elements picture element signal picture element，pel picture encoding picture exchange picture exchange communication system picture exchange communication system {=pecs} picture fidelity picture file picture fill picture format picture format item picture frame picture frame, picture-frame pictureframe picture-framer picture-framing picture frequency picture-frustration picture gallery