This paper introduces the principle and application of fuel cell by natural gas energy.
介绍了以天然气为能源的燃料电池的工作原理及应用前景。
It was proved that the exhaust gas had genetic toxicity to plant cell.
证实了汽车发动机废气对植物细胞具有遗传毒性。
It was proved that the exhaust gas had genetic toxicity to plant cell.
证实了汽车发动机废气对植物细胞具有遗传毒性。
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