Very thanks. I really don't know that before.作者: Nogard 時間: 2006-2-16 11:47 PM
之前聽過... 但....我好似冇理 =..=作者: jac4153 時間: 2006-2-17 12:53 AM
wa, like this one ar, sei lo.....作者: Azuma 時間: 2006-2-17 02:16 AM
Is it calcium carbonate?/ G& `! n. j- e) C! x x
if yes ............................7 T# f D! e% ~& E6 z# v- h
what is the problem ............? % e2 _1 F7 P7 D# a( K) m% e+ s1.你包野都唔知係邊你點攞出黎 l; ~ r& u, ^$ p6 T2.點解真係諗唔明.............caco3 +h2o > CAhCo3 0 q& b3 |7 a \) x7 ^) h都唔係水............- q+ } `& C7 p% m0 h
3.你係屋企開部抽濕機會唔會令室內濕氣增加?