特殊用法compound umbel1.复伞形花序cymose umbel1.聚伞状伞形花序infra-red [ultra-red] dryingumbel1.伞形花序partial umbel1.分伞形花序radiant umbel1.辐射伞形花序simple umbel1.单伞形花序universal umbel1.复伞形花序