Four-stroke engines of this type with this same type of intake valve motion but with a supercharger to make up for the loss of power density are known as Miller cycle engines.
They can be applied to molecular optical switches of high storage density, high switching rate, and high write erase cycle times based on their photochromism.
基于这种光致变色性能，这类物质可用作存贮密度高、响应速度快及擦-写次数高的信息存储材料。
3
Li battery have the good features of small size, high power density, no memory effect, long cycle life, high voltage and low self-discharge.