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6.89

6.89

6.89

6.89

1

The soil in underground pit can maintain an annual heat equilibrium , and the annual average performance coefficient of the system is 6 . 89 .

地下坑槽内的土壤可以保持以年为周期的热平衡，系统的年平均性能系数为 6 .

2

To be fair , the aluminium business moved back to a net profit of $358 m after a loss of $689 m in the same period last year .

公平地说，力拓收购的这项铝业务已扭亏为盈，从去年同期亏损 6.89亿美元转为上半年实现净利润 3.58亿美元。

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