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本文就齿轮泵耐久性寿命冲击试验中基础压力对被试泵及其系统的影响做了具体的研究，阐明基础压力的大小不应为零，应保持一个恰当的数值。
In this paper, gear pump life durability impact test of the basic pressure on the test pump and its system made a specific study to clarify the size of the basic pressure should not be zero, should maintain an appropriate value.