节能汽车发动机德国凯撒斯劳腾大学的科学家们研制出一种新的汽车发动机，该发动机能节省５０％燃油，并能大量减少有害气体的排放。这种发动机的主要特点是，汽车一旦发动起来就主要靠惯性前进，不须连续地供能。当驾驶员停踏加速踏板时，驱动轮便会把发动机同一个附加离... Energy-saving car engines Scientists at Kaiserslautern University in Germany have developed a new car engine that can save 50% fuel and can significantly reduce the emission of harmful gases. The main feature of this engine is that once the car starts up, it is mainly driven by inertia and does not need to be powered continuously. When the driver stops the accelerator pedal, the drive wheel will add the same engine ...