钻研 pore ; Studying ; delve ; dig into

钻研会 seminar ; sinar ; research society

深入钻研 dig into ; study deeply

刻苦钻研 lucubration ; The assiduous study ; plow through ; to study diligently

合气柔术研钻塾 daito-ryu aikijujutsu kenseijuku

专门钻研 bone up on ; specialize in

探讨钻研 The study delve into

刻苦钻研者 lucubrator

钻井研究实验室 DRL

研钢砂钻头 crown for chilled shot ; drag shoe