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；
Output speed of electric installations on the determination of its opening and closing the valve when the time is not strictly required, should try to use a slower speed.
关于对电动装置输出转速的确定，在阀门对其启闭时间没有严格要求时，应尽量选用较慢的速度。
Test results show that the hydraulic valve actuation system can realize continuously variable valve lift and the early intake valve closing by changing the time of oil pressure release.
通过实验证明这种液压气门机构可通过改变泄油初始相位角实现进气门最大升程和进气迟闭角的连续可变。
Characteristics of cross-joint flush valve: they are time-lapse, self-closing, beeline of water route.
四通冲洗阀特点：延时自闭、水流路径成“一”字型， 适应的水压比较多， 有手柄式、按钮式、脚踏式。
At the same time the valve opens a small moment, to achieve the rapid opening and closing the valve.
同时阀门开启矩小、能实现阀门的迅速开启和关闭。
At the same time the valve opens a small moment, to achieve the rapid opening and closing the valve.
同时阀门开启矩小、能实现阀门的迅速开启和关闭。
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