近几十年来，国内外许多学者、专家对如何提高拖拉机的牵引附着性能作了大量的研究，取得了较好的效果。
A lot of research work has been done on the improvement of small wheel tractor traction performance in recent years.
为进一步探索蜘蛛丝的成丝机理，研究了不同个体大小，不同生存方式，不同环境湿度的大腹圆蛛牵引丝的拉伸性能。
The mechanical properties of the Araneus Ventrious spider dragline silks were studied at variable conditions, humidity, spider's weight, crawling way, to understand spider's spinning mechanisms.
研究了提梁机启动速度、牵引性能、爬坡对驱动液压系统的冲击问题，指出了减缓冲击的措施和控制参数。
Study the hydraulic system impulsion in relevant to traction performance, startup speed and upgrade climbing, and advise the way and parameter to reduce impulsion.
研究串联型混合电动大客车动力驱动系统关键部件，如牵引电机、发电机组和电池组性能参数的匹配以及“恒温器”控制策略。
Powertrain system for a series hybrid electric bus is studied. The study includes the performance parameters matching of key components and the "thermostat" control strategy.
在室内土槽中对弹性轮进行了牵引性能试验研究及弹性轮与7.50 - 16橡胶轮胎牵引性能对比试验研究。
Tractive performances tests of elastic wheels were conducted in the in-lab soil bin in comparison With those of the driven tire of 7.50-16.
列车的牵引与制动性能的计算研究，是列车设计必须进行的最基础的工作；
Train traction and braking performance is the most important characteristic of the train, which is an important basis for the design of train traction drive system.
研究结果表明，沙漠仿生轮胎比普通轮胎具有更好的牵引性能和沙漠通过性能。
The indexes of traction performance of both tires were obtained by tests. The results show that the bionic camel foot tire is characteriz…
研究结果表明，沙漠仿生轮胎比普通轮胎具有更好的牵引性能和沙漠通过性能。
The indexes of traction performance of both tires were obtained by tests. The results show that the bionic camel foot tire is characteriz…
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