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单词	窗孔卡片
释义	DEFINITIVE EXAMPLES 权威例句〔aperture card〕A punched card on which frames of a microfilmed document are mounted.窗孔卡片，穿孔卡片：镶有缩微胶片的穿孔卡片美国传统
随便看	foam compartment foam concrete foam cooling column foam crust foam degumming foam depressant foam depressant FBX-01 foam destroyer foam drilling foam dust separator foam embolus foam fabric foam fermentation foam fire-extinguisher foam floating roof foam flotation foam flow foam formation foam fractionating foam generator foam glass foam glue foam height foam hydrant foam inhibiting agent

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