试验结果初步说明利用废气再循环，是高压缩比甲醇发动机解决相关问题的重要途径。
The test result shows that using EGR is an important approach to solve related difficulty for high compression ratio methanol engine.
在此基础上设计了点火提前角控制器的软件和硬件，做了高压缩比的LPG发动机试验。
The hardware and software of ignition advanced angle controller are designed in this base. LPG engine with high compression ratio had been tested.
在此基础上设计了点火提前角控制器的软件和硬件，做了高压缩比的LPG发动机试验。
The hardware and software of ignition advanced angle controller are designed in this base. LPG engine with high compression ratio had been tested.
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