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?$ |2 G. m( e* j
if yes ............................' A: b5 \; W- k. F! J
what is the problem ............?7 C* X4 B% k1 T. ~- v8 d
1.你包野都唔知係邊你點攞出黎( r+ w, V. _6 C9 V5 s3 U8 N( u
2.點解真係諗唔明.............caco3 +h2o > CAhCo3 % i. d9 U( S( p; [都唔係水............ # Y+ T+ n! g9 D3.你係屋企開部抽濕機會唔會令室內濕氣增加?