air-operated drill 气动钻机

steam-operated drill 蒸汽驱动钻

all hydraulic operated drill 全液压钻机

full hydraulic operated drill 全液压钻机

hand -operated electric drill 手动电钻

operated grass seed drill 气动操纵式草子播种机

air-operated taphole drill 风动开口钻

hand-operated electric drill 手动电钻

pneumatically operated grass seed drill 气动操纵式草子播种机