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þʪЩ - ٶȾ

Ӧþ,Һŷ,ڲþ,,̵̴ͨѴŷš


ʲôþʪ,ֹҵʲô...

ˣþ豸ҪԵڸƻ


þʪ - ٶȾ

þʪ 1 ̼飺һþ1þҺƱþԭϷۺ͹ˮձһƳһŨȵþ...


þDzΣƷ

ǣڡþԭþþΣƷȼաױըǿҸʴԵƷΣƷþ...


þʪսʲô?

ʪķӦǿȡӵܽԡþӵܽԱȸӸٱþбȸƻ...


þЩ,ʲô;?

þĻԭ MgO ĽҺе SO2, ɺˮþ򣬽ղþܹ...


þɶȱ

ȱ㣺þ򷨱ȽϸӷҲȽ_þص㣺1ЧʸߡڻѧӦԷþҪԶԶڸƻ...


þнҺѭʹ

þΪþþʹҺкдӣpHϵ͵£γϡᣬʴ...


þŵЩ

1þ򷨵ԭ ▪ չ ▪ ▪ ѭ 2þŵ ▪ ▪ ...