put 3 balls on each side,
# O" n- m+ ~+ J+ z4 I( uTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。if balance, we can prove that all 6 balls on the 天平 is normal, 4 A, J L! o" `$ f9 O) N- `3 T
if not balance, we can prove that the 6 balls outside the 天平 is normal.
' X E7 n9 ~ c公仔箱論壇then use the proved-normal ball on one side and put the other ball on other side www3.tvboxnow.com+ C/ t/ w6 R9 a5 L. R( s5 s( Y
to determine the abnormal is heavy and light |