1·The combustion of larger molecules, which have multiple carbon-carbon bonds, involves a more complex series of reactions.
具有多重碳-碳键的大分子的燃烧涉及到一系列更复杂的反应。
2·These reactions increase the probability of incomplete combustion and are more likely to release uncombusted and photochemically active hydrocarbon compounds into the atmosphere.
这些反应增加了不完全燃烧的可能性，更有可能释放未燃尽和光化学活性碳氢化合物到大气中。
3·The energy is released by combustion on the application of a match.
能量通过点火柴燃烧释放出来。
—— 《柯林斯英汉双解大词典》
4·The effect of combustion conditions on burning-out time and maximum burning rate is researched.
调查了燃烧条件对燃尽时间和最大燃烧速率的影响。
5·This means it can use oxygen from the atmosphere for combustion instead of carrying it onboard.
这意味着它可以利用空气中的氧气进行燃烧，而不必随机携带氧气。