engineering cell technology
engineering cell technology
工程细胞技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Jim Fletcher, a mechanical engineering doctoral student in fuel cell technology, said the bus is 10 percent more efficient than comparable diesel buses -- a first step in what researchers expect will one day be a far more efficient form of transportation.
CNN: Bus showcases fuel cell technology