The net effect of the formula is the normalization of the gross profit generated by individuals that have various billing rates, but will incur similar carbon emissions.
这个公式的最终效果是个人各种记账率产生的总利润，但将导致类似的碳排放。
At present, it is a big blank to surf the net on accounting and safety certification mechanism in a lot of districts, and there is not a set of intact network billing system.
目前，很多小区上网在计费和安全认证机制上却是一大空白，没有一套完整的计费系统。
At present, it is a big blank to surf the net on accounting and safety certification mechanism in a lot of districts, and there is not a set of intact network billing system.
目前，很多小区上网在计费和安全认证机制上却是一大空白，没有一套完整的计费系统。
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