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? 6 B, D; t8 g* I' Zif yes ............................ 7 t; L! N8 [) V) {what is the problem ............? Q* L/ _( r& m0 L' Y* f r2 C
1.你包野都唔知係邊你點攞出黎8 S/ M" n o! v/ E, |1 y9 x8 P
2.點解真係諗唔明.............caco3 +h2o > CAhCo3/ S! Y- J0 e2 V
都唔係水............5 y3 o1 [( A, Y9 X9 _3 f
3.你係屋企開部抽濕機會唔會令室內濕氣增加?