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1·A new type of optimum cutting and throwing soil component combining reverse rotational rotor with the blade with open type bulldozer blade was developed.

该文研制了逆转刀辊与开式推土铲组合的切抛土部件。

2·On the basis of systematic study, this paper points out: the agricultural hydraulic bulldozer is composed of agricultural tractor with hydraulic dozer blade.

本文通过对农用液压推土机的系统研究，指出：农用液压推土机是以农用拖拉机配置液压推土铲组成。

3·Based on the inspection and analysis to the imported wear resisting components, the cutting blade and end bit of model D9L bulldozer were made using air cooled cast steel.

在检测分析进口抗磨件基础上，采用空冷贝氏体铸钢制造了D9L推土机铲刃、铲角。