simultaneous
(1)同时的，同步的
(2)联立(方程)的

• monotonically decreasing function
• monotony
• monovalent
• monovalent ion
• monoxide
• montage
• moon
• moon-beased laser communication system
• Mooney rhomb
• moonlight
• moon-shaped lens
• mopopulse optical radar
• moring-magnet instrument
• morphology
• morphotropy
• Morse taper
• mortar
• mosaic
• mosaic block
• mosaicker
• mosaic structure
• mosaic surface
• MOS floating point
• mositure
• mositure absorption