MDL-50A型锚固钻机使用说明书

MDL-50A型锚固钻机使用说明书(中文5800字,英文4700字)
中国是世界上机械发展最早的国家之一。中国的机械工程技术不但历史悠久，而且成就十分辉煌，不仅对中国的物质文化和社会经济的发展起到了重要的促进作用，而且对世界技术文明的进步做出了重大贡献。传统机械方面，我国在很长一段时期内都领先于世界。到了近代，特别是从18世纪初到19世纪40年代，由于经济社会等诸多原因，我国的机械行业发展停滞不前，而这100多年的时间正是西方资产阶级政治革命和产业革命时期，机械科学技术飞速发展，远远超过了中国的水平。这样，中国机械的发展水平与西方的差距急剧拉大，到十九世纪中期已经落后西方一百多年。

MDL-50A Drilling Rig Operation
China is the world's first national machinery development. Chinese mechanical engineering technology not only has a long history and splendid achievements in Chinese is not only the material culture and social economic development plays an important role in the world, and has made great contribution to promote the progress of technology civilization . Machine in the traditional，our  country within a long period are leading in the word. In modern times, especially from the early 18th century, to the 19century40s, due to the economic and social and many other reasons, the  machinery industry of Chinese was stagnation, but  the 100 years is western bourgeois political revolution and industrial revolution time, mechanical science and technology is developing rapidly, and far more than the level of China. So, China mechanical development level and the western gap widens, to the 19th century middle， our country already behind western more than one hundred years. [来源：http://www.doc163.com]