1·A fuel cell is a device that uses a source of fuel, such as hydrogen, and an oxidant to create electricity from an electrochemical process.
燃料电池是一种利用某种燃料（举例：氢）和氧化剂通过电化学过程产生电能的装置。
2·As long as they are constantly supplied with fuel and oxidant, fuel cells can continuously produce power, removing the need for recharging.
只要能够不断地获得燃料和氧化剂，就能连续产生电能而无需再充电。
3·It thus needs to carry less fuel than a rocket, and no chemical oxidant to burn that fuel, as a rocket would.
这种火箭需要携带的燃料也减少了，并且不需要化学氧化剂。
4·Unlike a typical battery, which eventually goes dead, a fuel cell continues to produce energy as long as fuel and oxidant are supplied.
它与传统电池不同，只要供应燃料和氧化剂就能发电。
5·They found that when NRF2 was missing, the process of translating messages from the genes into proteins was highly affected by the oxidant and antioxidant balance, but only in the cancerous cells.
他们发现当NRF2消失时，将基因信息翻译变成蛋白质的过程在很大程度上受氧化剂和抗氧化剂之间平衡的影响，但仅限于癌细胞。