region.区；部位regabbr.地区（=region）abbr.登记（=register）abbr.有规则的（=regular）regulating resistance调节电阻,电位计registrable workplace应注册工场regencrating thinking创新恩维registration pin belt叠合齿带regulatory protection规章类保护regulating the breath调息regulatory toxicology管理毒理学regulatory constraint规制regenerating solution再生溶液regeneratively cooled再生冷却