- An angle formed by the perpendicular intersection of two straight lines; an angle of 90°.直角，90度角：由两条直线垂直相交而成的角；90°角
- machinated
- machinates
- machinating
- machination
- machinations
- machine
- machine
- machine bolt
- machine code
- machined
- machine finish
- machine gun
- machine-gun
- machine language
- machine pistol
- machine-readable
- machineries
- machinery
- machinery
- machines
- machine screw
- machine shop
- machine tool
- machine translation
- machine-wash