rule定则: rule法则: rule; law定则: (表述事物之间相互关系, 并已得到公认的规定或法则) rule 右手定则 right-hand rule; 左手定则 left-hand rule奇偶规则, 奇偶定则, 偶数转换法则: even-odd rulesa法则: a-law下载手机词典可随时随地查词查翻译