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建立了复合齿轮泵流量脉动的测试系统，通过与普通齿轮泵的对比试验，得出了复合齿轮泵流量大、流量均匀性好，具有良好的推广应用前景。
The test system for the pulsation of compound gear pump was established. Comparing with the ordinary gear pump, it was concluded that the composite gear pump had high flow rate and good flow uniformity, and had a good prospect of popularization and application.