Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
masses =
1. ‰ˆ
2. • 
3. O
4. Š÷

ƒŒƒxƒ‹6. •ÏX
SDAL“‡‰pŒêŠwZ