R 开头单词
rules of order public [经济学]公共医疗法律
rules of engagement 交战规则。
rules for waterway transport [交通运输工程]水路货物运输规则
rules n.规则；规章；制度名词rule的复数形式.
rulership n. 统治者的地位；职权或任期
rulers of remote antiquity 三皇五帝
rulers n. 统治者；标尺，[数] 直尺
ruler-worship 统治者崇拜
ruler guides 辅助线
ruler n.尺子；划线板n.统治者；支配者
ruleofNine 九分法
ruleless adj.无规则的；无规律的；不受支配的
ruleg 规一例式 (程序教学用语)
ruled surface [数] 直纹曲面
ruled quadric [数学]直纹二次曲面
ruled out dual universal suffrage [新闻学与传播学]否决双普选