小产权房屋数量庞大，国家监管失控，它的存在和蓬勃发展是多方面因素促成的。
There're many reasons for the existing of the township property right houses which are great in number and out of national supervision control.
对于“新民乐”的概念、它的产生背景和原因、存在价值以及发展前景的讨论都有着十分积极的现实意义。
Then the discussion on its concept, the reason and background in which it came into being, the value of its existence, and its developmental foreground has quite active realistic significance.
通过对国内外传动机械学的现状和存在问题以及发展趋势的分析，提出了我国传动机械学的研究目标，指出多学科领域的科技进步对它起着重要的推动作用。
This paper analyses the drive mechanisms present situation and questions as well as development trend domestic and oversea, and brings forward the drive mechanisms research objective of our country.
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