Likewise, BMW withdrew its own test fleet of 100 cars with internal-combustionengines modified to run on hydrogen.
同样的,德国宝马汽车公司也收回了他们原有100辆改装用来燃烧氢原料的内燃发动机的汽车的测试车队。
2
That's because fermenting corn into ethanol delivers less liquid fuel energy for internalcombustionengines than does burning the kernels to generate power for electric motors.
因为,将玉米发酵后作为内燃式引擎的燃料所提供的能量,要比将其燃烧后发电提供给电机的能量少。
3
Wood heated at high temperatures with minimal oxygen cannot burn completely. Instead, it creates gases that can be used to power generators or internalcombustionengines.