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cou·pler AHD[kŭpʹlər] D.J.[ˈkʌplə]K.K.[ˈkʌplɚ]n.（名词）- One that couples, especially a device for coupling two railroad cars.连接物，连接者：连接的事物，尤指连接两节火车车厢的装置
- Music A device connecting two organ keyboards so that they may be played together.【音乐】 联键音栓：连接两个风琴键盘使之能够同时演奏的装置
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