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1·These two kinds of internal gear pump working principle and external gear pump working principle the same.

这两种内啮合齿轮泵的工作原理和外啮合齿轮泵的工作原理相同。

2·Balanced compound gear pump is a new king of hydraulic pump which combines ring gear with external gear pump.

复合式平衡齿轮泵是将内外齿轮泵融为一体的新型液压泵。

3·This article will discuss the design of compensating groove in external gear pump by analyzing the gearing characteristics.

该文主要通过分析齿轮的啮合特点来探讨啮合齿轮泵卸荷槽的设计。

4·An oil pump (18) is arranged on the external part of the casing of the gear box and on a power output shaft (17), and an oil cylinder (9) is arranged on the rear upper part of the gear box.

在变速箱的壳体外部，于动力输出轴(17)上装有油泵(18)，而油缸(9)被安放在变速箱的后上部。