单词	小正齿轮
释义	小正齿轮spur pinion
随便看	three-group--theory three-guarter sleeve three-guide coupler three-gun chromatron three halfpence three-halfpence three-halfpence, threeha'pence three-halfpenny three-halves power law three-hand three-handed three-handkerchief threeha'pence three-headed monster three-headed monster-- tricephaly three-headed monster; tricephaly three heart rule three highest graduates of the hanlin three-high mill three-high rolling mill three-hinged arch three-hit theory three hole core three-horn sea-perch three-horn sea-perch--1939--ostracoberyx tricornis matsubara