Watch out too for a new six-seater Renault hybrid and a four-wheel drive Citroën with a diesel engine powering the front wheels and an electric motor operating the rear ones.
值得密切注意的还有，一种新型六人座的雷诺混合动力车和四轮驱动的雪铁龙，两个前轮用柴油发动机驱动，一个电动马达在后方作业。
Used the way of perpendicular design to equilibrium arrange in pairs or groups of diesel-methanol-n-butanol-oleic acid, and then looked for a optimize result from the experiments of a diesel engine.
利用正交设计方法对柴油—甲醇—正丁醇—油酸的混合燃料进行均衡搭配，然后在台架试验中寻求优化解。
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