无能性
发表于 2025-3-27 00:05:50
http://reply.papertrans.cn/15/1412/141175/141175_31.png
是贪求
发表于 2025-3-27 01:31:22
http://reply.papertrans.cn/15/1412/141175/141175_32.png
conscribe
发表于 2025-3-27 07:45:49
http://reply.papertrans.cn/15/1412/141175/141175_33.png
神圣不可
发表于 2025-3-27 11:05:50
Eigenmittel und deren Verwendungor almost all products. Taking automobiles as an example, Table 12.2 shows statistics of the number of vehicles per 1000 inhabitants in several counties (ANON 2017). In the U.S. every 1000 people owned 797 motor vehicles in 2014; however, this number was only about 143 in 1924.
无法破译
发表于 2025-3-27 14:26:18
Eigenmittel auf konsolidierter Basishrough machining. These processes include casting, forging, welding, extrusion, spinning as well as power metallurgy. In order to improve the properties of mechanical parts, heat treatment operations are needed often.
软弱
发表于 2025-3-27 20:31:43
Ce Zhang,Jianming YangPresents a systematic history of mechanical engineering from ancient times to the modern day.Offers a comprehensive discussion of the development of machinery inventions, mechanical design, mechanical
思乡病
发表于 2025-3-28 01:00:14
http://image.papertrans.cn/a/image/141175.jpg
侵略主义
发表于 2025-3-28 05:50:23
Die Gewinn- und Verlustrechnungut a long list of machine names. College students in mechanical engineering around the world are in millions. People working on mechanical related jobs, including production, maintenance, research and education etc. are estimated in the scale of tens of millions. The number of people who have the op
落叶剂
发表于 2025-3-28 08:20:43
Eigenmittel auf konsolidierter Basis great social changes. During the several centuries, a series of important events, including the birth of Capitalist mode of production, great geographical discoveries, the Renaissance, the Reformation, the Enlightenment and Bourgeois Revolutions, took place successively.
反应
发表于 2025-3-28 10:46:08
Banken, deren Sicherung und Beaufsichtigunger, happened in Britain. The Industrial Revolution happened the same time, which brought wide application of machines to the industry and dramatic changes to the society, transforming the agriculture-based society to an industry-based one. Since then, the world started fast development in all aspect