请输入您要查询的词汇：
词汇
aperture card
释义
aperture card
窗孔卡片
一种标准尺寸的可加工卡片，微缩胶片帧可以插入该卡中。
具有一个或多个长方形窗孔的卡片，每一窗孔上安装一帧微缩胶片。
随便看
on one's knees
on one's legs
on one's own
on one's own account
on one's own initiative
on one's own terms
on one's own time
on one's part
on one's person
on one's way to
on or about
on order
on paper
on parade
on parole
on pins and needles
on-premise standby equipment
on principle
on purpose
ONR
on rail
on-ramp
on receipt of
on record
on reflection
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更新时间：2026/11/8 6:50:29