1. 博士的：doctorate 博士头衔 | doctorial 博士的 | doctrinaire 空论家
2. 博士的/权威的：doctorate /博士头衔/ | doctorial /博士的/权威的/ | doctorship /博士学位/
1. He said Tang Jun's name is not on the school's alumni record, and Tang's doctorial dissertation can't be found in the dissertation database.
adj
1. of or relating to a doctor or doctorate
e.g. doctoral dissertation
doctorial candidates
Synonym: doctoral