召唤那么多老家伙出来的也没几个

班主任说：“学好一门课，就应该像追一个姑娘一样，要坚持！” 我打断他说：“那你同时追八个试试。” 班主任：“你给我滚出去！” 瞬间明白为什么我是学渣了，原来我是一个专一的人啊，默默地扫视了班里的学霸：呵呵，你们这些见课就上的小婊砸……

Mechanical engineering finds its application in the archives of various ancient and medieval societies throughout mankind. In ancient Greece, the works of Archimedes (287–212 BC) deeply influenced mechanics in the Western tradition and Heron of Alexandria (c. 10–70 AD) created the first steam engine (Aeolipile).[3] In China, Zhang Heng (78–139 AD) improved a water clock and invented a seismometer, and Ma Jun (200–265 AD) invented a chariot with differential gears. The medieval Chinese horologist and engineer Su Song (1020–1101 AD) incorporated an escapement mechanism into his astronomical clock tower two centuries before any escapement can be found in clocks of medieval Europe, as well as the world's first known endless power-transmitting chain drive.[4]
...structures, and vehicles of all sizes.
During the years from 7th to 15th century, the era called the Islamic Golden Age, there were remarkable contributions from Muslim inventors in the field of mechanical technology.

Mechanical engineering finds its application in the archives of various ancient and medieval societies throughout mankind. In ancient Greece, the works of Archimedes (287–212 BC) deeply influenced mechanics in the Western tradition and Heron of Alexandria (c. 10–70 AD) created the first steam engine (Aeolipile).[3] In China, Zhang Heng (78–139 AD) improved a water clock and invented a seismometer, and Ma Jun (200–265 AD) invented a chariot with differential gears. The medieval Chinese horologist and engineer Su Song (1020–1101 AD) incorporated an escapement mechanism into his astronomical clock tower two centuries before any escapement can be found in clocks of medieval Europe, as well as the world's first known endless power-transmitting chain drive.[4]
...structures, and vehicles of all sizes.
During the years from 7th to 15th century, the era called the Islamic Golden Age, there were remarkable contributions from Muslim inventors in the field of mechanical technology.

恭喜楼主,你已被青蛙大学,赖蛤蟆系,不要脸班录取。请你携带你的精神病证明,坐二百五路公交车到傻瓜路,笨得要死街,蠢得要命站下车,报名时请站在校门口傻笑。

留完十五个字就走是我的一贯作风