By doing some analysis on the logistics system, the paper takes the method of Geometry modeling and Kinematics modeling, building some static models used in the system, including urface of container terminal, yard, Quay Crane, Gantry, Tractor, Shipping, etc.
通过对集装箱物流系统进行分析，采取几何建模与运动学建模相结合的方法，建立包括码头前沿、堆场等港口设施和岸桥、龙门起重机、集卡、船舶等机械设备的模型库。
参考来源 - 港口集装箱物流系统虚拟平台研究The method was applied to analyze first tractor failure data. Estimating reliability model parameters is the base to analyze reliability.
并将该方法应用于拖拉机首次故障数据的分析。
参考来源 - 基于人工神经网络的拖拉机使用可靠性研究The optimal design method was tested in LuoYang Tractor Company and state_owned 604 Company and the result is that the method can reduce the weight of the machine by 1 0%and 16%.
在采用本方法对洛阳拖拉机厂和国营六零四厂的堆垛机结构进行优化的结果是在满足性能要求的前提下，可以使其结构重量减轻10％和16％。
参考来源 - 自动化立体仓库堆垛机的控制与设计研究From April,2003 to March,2004,using WuXi NO.5 Peoples Hospital as base,we treated totle 28 patients with cerrical spondylopathy of never roots, 16 patients treated by tractor,Guyouling plaster and TDP, 12 patients treated with single tractor.
作者于2003年4月～2004年3月，以无锡市第五人民医院为基地，治疗神经根型颈椎病患者28例，其中16例采用颈椎牵引配合骨友灵贴膏和TDP照射综合治疗，12例采用单纯颈椎牵引治疗进行临床研究。
参考来源 - 颈椎牵引配合骨友灵贴膏、TDP治疗神经根型颈椎病的临床研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N-COUNT A tractor is a farm vehicle that is used to pull farm machinery. 拖拉机
N-COUNT A tractor is a short vehicle with a powerful engine and a driver's cab. It is used to pull a trailer, such as in a tractor-trailer. 牵引车头
The truck was an 18-wheeler with a white tractor.
这辆卡车有18轮，还有一个白色牵引车头。
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