求翻译：首先简单回顾了我国房地产业的发展历史，着重分析了90年代以来的房地产发展的整体情况；然后阐述了房地产泡沫的定义、形成原因、运行机制以及测度方法；以甘肃省兰州市房地产市场为例，从房地产市场交易价格居高不下的原因，土地供应情况，市场所提供的房屋数量，以及廉租房：以此来反映兰州市房地产发展所带来的问题。是什么意思？

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正在翻译，请等待...

First was simple reviewed our country real estate industry development history, has since emphatically analyzed the 90's real estate development overall situation; Then elaborated the real estate froth definition, forms the reason, the operational mechanism as well as the measure method; Take the Ga

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Have reviewed the developing history of the real estate of our country briefly at first, has analyzed the whole situation of real estate development since the 1990s emphatically; Then has explained the definition of the foam of the real estate, formed the reason, operating mechanism and estimated th