seventies the meaning in Chinese

七十年代

In the seventy the u . s . space program seem to have reach a plateau of development
七十年代美国的宇宙空间计划似乎发展到了一个较高的水准。
In the seventies the u . s . space program seemed to have reached a plateau of development
七十年代美国的宇宙空间计划似乎发展到了一个较高的水平。
But development of the origin in social economic technology and deepening studying to the expressway , until developed country relax government control , lead rise of tide of competition mechanism into to public utilities since the will it be the seventies the 20th century , the properties of the natural monopoly of the expressway receive people ' s extensive query , requirement and improve the voice of controlling the mechanism of the expressway and grow to even greater heights
但是根源于社会经济技术的发展和对高速公路研究的深入,随着20世纪70年代以来发达国家对公用事业放松政府管制、引入竞争机制之浪潮的兴起,高速公路的自然垄断的性质受到人们广泛的质疑、要求变革高速公路的管制机制的呼声日益高涨。