精选优质文档-倾情为你奉上附 录Seeder history and introductionhe first century B.C., China has good, this is to promote the use of the worlds earliest drill machine, today is still in the north of equal applications. 1636 in Greece first Taiwan machine made. In 1830, russians in livestock HuaLi more on LiBo machine made. 1860 years later, the countries such as Britain and started mass production work grain suitable drill. After the 20 th century have appeared traction and hanging drill mac
