... 技术按控制对象可分成两类，一类是可变气门定时（Variable Valve Timing，VVT）；另一类是可变气门升程（Variable Valve Lift，VVL）。两者兼有的系统称为可变气门执行器（Variable Valve Actuator，VVA）系统。
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... 技术按控制对象可分成两类，一类是可变气门定时（Variable Valve Timing，VVT）；另一类是可变气门升程（Variable Valve Lift，VVL）。两者兼有的系统称为可变气门执行器（Variable Valve Actuator，VVA）系统。
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newly developed variable-valve-lift 可变气门升程
Variable Valve Event and Lift 可变气门升程
Variable shiftable valve lift controls 可变档位气门升程控制
以上来源于: WordNet
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。
The Characteristics of valve movement using fully variable hydraulic valve train is studied by measurement of valve lift and oil pressure of fully variable hydraulic valve train.
通过对全可变液压气门机构的气门升程和液压压力的试验测量，研究了全可变液压气门机构的气门运动特性。
Fully variable valve train may realize continuously variable valve timing and valve lift, and so it represents development trend of variable valve technology.
全可变气门机构能实现发动机配气定时和气门升程的连续可变，是可变气门技术的发展趋势。
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