The study of quality - oriented education in the modern distance education is the hot issue in the education sector and academics in recent years.

现代远程教育中的素质教育是近年来教育界和学术界研究的热点。

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Based on the principle of gear machining generating method, a modeling method - variable center distance gear modeling method for variable ratio gear sector profile is put forward.

基于齿轮的范成加工原理，提出了一种变速比齿扇齿廓的定中心距齿轮建模法。

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Most importantly perhaps, Mr Bersani would scrap the rules setting a minimum distance between rival businesses that limit competition in much of the retail sector.

ECONOMIST: Italy needs to deregulate its economy