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Դ{h(hun) | l(f)rg2019-06-14 | Ŀg | g[(sh)4327


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ÓCϷSO2Ҫv:

1.ܽ

SO2g+H2OH2SO3l

2.ʯʯďͷֽⷴ

CaCO3l+H++HSO3-Ca2++SO32-+H2O+CO2g

3.

2SO32-+O22S042-

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