试验及使用结果表明：大型单螺杆泵性能达到设计要求，具有参数合理、结构先进、工作可靠的特点。

Both test results and application show that the large single screw pump has reached the design requirements. It has the features of reasonable parameters, advanced structure and reliable performance.

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该实用新型设计新颖、结构紧凑，适用于各种单螺杆泵采油系统。

The utility model has the advantages of novel design and compact structure, being suitable for various single-screw pump oil extraction systems.

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