应用灰色关联分析方法来研究影响自吸泵自吸时间各主要因素的重要性，对自吸泵的设计和运行具有指导作用。结果表明，该方法与其它方法相比，具有要求试验数据少的优点。 The application of gray relational analysis method to study the importance of the self-priming pump self-priming time of the major factors, the design and operation of the self-priming pump has a guiding role. The results show that compared with other methods, this method has the advantage of requiring less experimental data.