put 3 balls on each side, TVBNOW 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。5 M2 O5 @) ^2 [: e! k
if balance, we can prove that all 6 balls on the 天平 is normal, os.tvboxnow.com Z, r" O, w" J& ^# C. \4 X* k6 R
if not balance, we can prove that the 6 balls outside the 天平 is normal.TVBNOW 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。+ v0 @0 ?7 e/ U
then use the proved-normal ball on one side and put the other ball on other side os.tvboxnow.com& v& z5 g& q: w4 E2 f
to determine the abnormal is heavy and light |