论文部分内容阅读
蒸汽绳索牵引犁蒸汽绳索牵引犁(steam cable-drawn plow)就是用在地头的可移动蒸汽机,通过钢索在农田牵引犁铧耕作的系统(图1)。19世纪中叶,蒸汽绳索牵引犁的前景已引起农业和工业的激
Steam rope plow Steam rope-drawn plow is a system of plow-tillage plows on farmland (Fig. 1) using a movable steam engine on the ground. In the mid-19th century, the prospect of steam rope plows has provoked agitation and industry