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阐述了自翻车在运输粒（块）状货物中的作用以及研制（改进）自翻车的必要性，并侧重提出研制（改进）自翻车所必须选定的一些主要参数的依据与控制范围
The role of self-overtaking in conveying grain (block) goods and the necessity of developing (improving) self-overtaking are described, and the basis and control scope of some main parameters that must be selected for developing (improving) self-