Regann.里根(姓氏)regabbr.地区（=region）abbr.登记（=register）abbr.有规则的（=regular）regenerator heating蓄热式烘烤regenerative switch再生式开关registration action登记动作regio trochanterica转子区regulatory criteria规制标准regulatory variable调整变量regulative cleavage调整裂regulatory function调节功能；制约功能regenerative firing蓄热式加热法regulating gradient调节梯度