Graduate student Research Assistant能不能當工作申請Canada PR?

請問ImmCanada幾各位大俠：
我是在校phD學生，平時有Research Assistant support.不知道，能不能把這當作工作經驗申請Canada PR.
我找到NOC code 4122.這個code能不能refer Research Assistant like me, who is, meanwhile, a graduate student.

Thanks a lot,