(表述事物之间相互关系, 并已得到公认的规定或法则) rule 短语和例子右手定则 right-hand rule; 左手定则 left-hand rule定则,法则: rule手定则: hand rule波得定则 伯德定则: bode'slaw爱墨瑞定则: emery's rule安培定则: amperes rule下载手机词典可随时随地查词查翻译