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?9 e4 L+ M; k; h2 x
if yes ............................: c6 W# j4 X+ f U# }, k4 P
what is the problem ............? : K% n! }# e) E3 A) y0 u1.你包野都唔知係邊你點攞出黎% c9 i) P K, ~) M; f0 t f7 l
2.點解真係諗唔明.............caco3 +h2o > CAhCo3 ; J6 R' N1 f! z9 p% l8 q) f都唔係水............ ; b1 C+ k% U$ s, [3.你係屋企開部抽濕機會唔會令室內濕氣增加?