单词	胚体脐
释义	胚体脐Somatic umbilicus
随便看	variational expression variational formulation variational functional variational inequality variational inequation variational initialization variationally variational method variational--method variational methods variational normal mode initialization variational objective analysis variational optimization analysis variational principle variational--principle variational problem variational psychology variational solution variational technique variational wave function variation area variation between classes variation calculus variation center variation chart