The results show that stiffness of spring does not affect the injection rate, but the mass of will affect the needle valve closing response time.
结果表明，电磁阀铁心弹簧刚度对喷油规律没有影响，但其质量影响针阀落座响应时间；
The results show that stiffness of spring does not affect the injection rate, but the mass of will affect the needle valve closing response time.
结果表明，电磁阀铁心弹簧刚度对喷油规律没有影响，但其质量影响针阀落座响应时间；
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