Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
masses =
1.
Š÷
2.
œ
3.
m
4.
O
ƒŒƒxƒ‹6.
•ÏX
SDAL“‡‰pŒêŠwZ