Module and view are divided with MVC pattern which solved the account with multiple currency.

应用MVC模式将显示数据与存储数据分离，实现了多币种结算。

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The user also can further participate in exchange activities which take the carbon dioxide emission reduction amount as a currency by a carbon exchange module and a carbon appreciation module.

用户还能通过碳交易模块和碳增值模块进一步参与以二氧化碳减排量为流通货币的交易活动。

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The user also can further participate in exchange activities which take the carbon dioxide emission reduction amount as a currency by a carbon exchange module and a carbon appreciation module.

用户还能通过碳交易模块和碳增值模块进一步参与以二氧化碳减排量为流通货币的交易活动。

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