它提供的电力出售给国家电网，利润收回后，用于偿还贷款和折旧。
The electricity it provides is sold to the National Grid and the profits go to the village, once the mortgage and maintenance payments have been made.
传统的报废处理只是作废旧物资回收，按照预先规定的折旧方式收回残值，没有考虑产品废弃后的环境污染问题。
Moreover, traditional discard processing only pays emphasis on material recovery to call back waste residual, leaving the environmental pollution ignored.
而采用直线折旧法提取的折旧费则相对较小，尽管收回的更新资金亦少，但当期的利润增大。
And the depreciation cost that USES extraction of sharp depreciation law is relatively lesser, although call in renew fund also little, but current gain increases.
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