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 齒輪泵的優(yōu)缺點分析
齒輪泵優(yōu)點：自吸式;排出量恒定且振動很小;可以雙向輸送;由于較小的間隙，流量隨粘度和壓力變化不大。
Advantages of gear pump: self-priming; Constant discharge and the vibration
is small; Can be two-way transmission; Due to the small clearance, the flow
changing with viscosity and pressure is not big.
齒輪泵缺點：由于較小的置換容積以及會磨損齒牙，所以只能輸送干凈的流體;不能空轉(zhuǎn);由于裝配和定位精度高，所以加工誤差要求很小。
Disadvantages: the gear teeth due to smaller displacement volume and will wear,
so can only transport clean fluid;Don't idle;Due to the assembly and high
positioning accuracy, so the machining error requirement is very small.
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