VVT是英语中的缩写，全称为Variable Valve Timing，中文翻译为可变气门正时技术。它用于汽车发动机的控制系统中，通过改变气门的开启时机和持续时间，以最大化燃烧效率和动力输出。
以下是9个使用VVT的例句：
1. This engine is equipped with VVT technology, which provides better fuel efficiency and higher performance.（该引擎配备了VVT技术，提供更好的燃油效率和更高的性能。）
2. The VVT system adjusts the valve timing according to driving conditions, ensuring smooth acceleration and reduced emissions.（VVT系统根据行驶条件调整气门正时，确保平稳加速和减少排放。）
3. The new model features an upgraded VVT engine that delivers more power and torque.（新款车型采用了升级版VVT引擎，提供更大的动力和扭矩。）
4. VVT technology has become increasingly popular in the automotive industry due to its benefits in performance and efficiency.（VVT技术由于在性能和效率方面的优点日益受到汽车行业的青睐。）
5. The VVT control module communicates with the engine's computer to adjust the valve timing in real-time.（VVT控制模块与发动机计算机通讯，实时调整气门正时。）
6. With VVT technology, the engine can switch between high and low valve lift modes, optimizing power output at different engine speeds.（借助VVT技术，引擎可以在高低气门升程模式之间切换，在不同的引擎转速下优化动力输出。）
7. The advanced VVT system in this car ensures precise valve timing control, resulting in a smoother and more efficient ride.（这款车配备了先进的VVT系统，确保精准的气门正时控制，从而实现更加平稳和高效的驾驶体验。）
8. VVT technology has been widely adopted in modern engines, improving performance while reducing emissions.（VVT技术已经在现代发动机中得到广泛采用，提升了性能同时降低了排放。）
9. This engine uses a hydraulic VVT system that adjusts the valve timing based on oil pressure, reducing engine noise and improving efficiency.（这款引擎采用液压式VVT系统，根据油压调整气门正时，减少了发动机噪音，提高了效率。）
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