proportional variable structure system
proportional variable structure system
比例变结构系统
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The proportional variable pump system made up with electrohydraulic proportional reversing valve and axial variable pump is a new kind of hydraulic dynamic structure.
由电液比例换向阀和轴向变量泵组成的比例变量泵系统是一种新型液压动力机构。
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