qualificationn.资格;限制;资历
qualification rate of taphole铁口合格率
qualification rate of welding焊接合格率
qualification for supervision监督资格
qualification test of P.E.体育加试
qualifications for recruitment招干条件
Qualification of the Plaintiff原告资格
qualification welding operator合格自动焊工
Qualification Training Package合格训练一揽子计划