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? ' n3 E8 J# P- w9 I* _if yes ............................& r X% }# G" T3 E' u$ s; t
what is the problem ............?* ~; M0 R* ^1 I3 g% g
1.你包野都唔知係邊你點攞出黎" U" K7 C% b- Z
2.點解真係諗唔明.............caco3 +h2o > CAhCo3; x5 N4 `' v# m' c: j% @+ S7 B
都唔係水............0 j. x3 K! \* S" ]# p5 F
3.你係屋企開部抽濕機會唔會令室內濕氣增加?