体倦乏力tǐ juàn fá lì

fatigue and lackof strength

• magnesium oxide
• magnet
• magnetic anomaly
• magnetic bottle
• magnetic declination
• magnetic dip
• magnetic domain
• magnetic field
• magnetic field reversal
• magnetic flux
• magnetic moment
• magnetic monopole
• magnetic pole
• magnetic poles，earth
• magnetic recording
• magnetic resonance
• magnetic storm
• magnetism
• magnetism，terrestrial
• magnetite
• magneto
• magnetochemistry
• magnetohydrodynamics
• magnetometer
• magnetomotive force