原帖由 kks7 於 2008-2-27 06:34 AM 發表 % t t* s2 g; v+ M6 l
我們人體到了 30 歲左右就停止製造骨質 5.39.217.76! H; x3 D y o1 Q `6 H7 ?0 I: t
That's is not correct. It should be stop growing tall.
3 a* T. i" N @/ w5.39.217.76Bone growth is more or less in equilibrium, and become stable after 30s.
" a3 J! s- H8 P3 e/ Q- there are 2 cells type in bone ... ! C: s3 `' h- _* |, M& {) x! l* a4 XHAHAHAAHA see see sometimes nothing is really what u see~~~~ |