A ratchet mechanism transfers the thread from spool to bobbin.一种棘齿装置把线从线轴转到梭心上。a spool of thread一轴线On dictation equipment, a spool on which magnetic tape is wound.在口述记录设备上, 一种卷绕磁带的轴....
Like all virtuosos, Fermi had a distinctive style.像所有的艺术家一样, 费米有他自己的独特风格.In terms of musical performance, there are many very good French musicians, but few virtuosos.从音乐演出来看, 优秀的法国音乐家不少, 可是缺乏演奏大师.Washington worships vir...