求翻译：此,从经济学角度看,合理住房租售比确定的原则是:当住房的寿命期满时,选择购房所需全部费用与选择租房所需支付的全部费用相等。是什么意思？

This, from an economic point of view, the principle of reasonable housing rental determine: when the expiration of the life of the housing, the full cost required to select buyers and select the rent required to pay the full cost of equal.

This, from an economic point of view, reasonable housing rental rate is determined when the principle is: The life expectancy at the end choose to buy the house with all the costs to rent rooms required to be paid by all equivalent cost.

This, looking from the economic angle that, the reasonable housing sale and rental compares the definite principle is: When housing life expiration, the choice buying homes needs the complete expense which the complete expense and the choice rents a room must pay to be equal.

This, from an economic perspective, reasonable housing rental and sales than principles is: when the housing at the end of life, select required to purchase all required to pay the full cost of the rental cost and selection are equal.

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