Major changes in tractor design include the power takeoff, the all-purpose or tricycle-type tractor, which enabled farmers to cultivate planted crops mechanically;
拖拉机设计的主要改变包括有动力输出装置，以及多用式或三轮型拖拉机的出现，这使农户实现机械化培育作物；
The article has expounded a new type of tractor, called it as new conception tractor.
本文论及的是一种新型拖拉机，作者称之为新概念拖拉机。
A new type of random program constant amplitude load spectrum is introduced, which is used in laboratory simulation test and life prediction of tractor components under random loading.
本文介绍了一种新型的随机程序载荷谱，以用于拖拉机零部件在随机载荷作用下的室内模拟试验与寿命预测。
Combined with 20-35 horsepower wheel tractor, the 3MZ series lift type garden sprayer applies to spray insecticide , it is an ideal and advanced machine for insect control.
3MZ系列悬挂式果园喷雾机与20-35马力轮式拖拉机配套，适合于果园病虫害防治喷洒杀虫剂、杀菌剂和其他液体，是一种先进、高效的果园施药机械。
This tractor is the same type as those.
这台拖拉机和那些拖拉机的类型一样。
A practical closed-type test rig is here described for testing the tractor gear transmission, A new arrangement was developed to improve the structure of the loading gear box with odd number gears.
本文介绍了一种由浙江农业大学提出的拖拉机齿轮传动系统闭式试验台的新布置方案，这种布置方式解决了奇数齿轮加载齿轮箱结构上的困难。
A back carrying type electric seeding machine capable of being mounted on a tractor is especially suitable for being used in a large field.
一种能悬挂在拖拉机上的背负式电动播撒机，特别适合在大田中使用。
This tractor is the same type as those .
这台拖拉机和那些拖拉机的类型一样。
The launcher assembly carries 4 rockets, and is mounted on a Type 60 artillery tractor for mobility.
发射装置装配携带4枚火箭，而且被安装在一辆60型火炮牵引车上用于机动。
Comparing with traditional tractor, this type of new conception tractor lays stress on its front suspension performance based on remaining hinter suspension performance.
与传统的拖拉机相比，这种新概念拖拉机在保持和完善后悬挂性能的同时更加突出其前悬挂性能。
A numerical method based on the potential flow theory is proposed in this paper for predicting the steady performance of tractor-type podded propellers.
本文提出拖式吊舱螺旋桨(螺旋桨位于吊舱首部)定常水动力性能的势流理论计算方法。
A numerical method based on the potential flow theory is proposed in this paper for predicting the steady performance of tractor-type podded propellers.
本文提出拖式吊舱螺旋桨(螺旋桨位于吊舱首部)定常水动力性能的势流理论计算方法。
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