dorsalia背片dorsaladj.(动物）背的；背部的；背侧的dorsal erector muscle背鳍竖肌(动)dorsal pancreatic bud背胰芽dorsal acoustic stria背侧听纹dorsal metatarsal vein跖背静脉dorsal white commisure白质后连合dorsal artery of penis阴茎背动脉dorsal veins of tongue舌背静脉dorsal gray commissure背灰质连合, 背灰(质)连合dorsal pancreatic duct背胰管dorsal caudate putamen背尾壳核, 背侧尾状核, 壳核

1. Lower sepal saccate, abruptly narrowed into an incurved short spur.
   唇瓣囊状，突然缩小成一弯曲的短距。