The combustion process in vehicles won't be able to occur.

汽车发动机不能点火。

Boron additives in rocket fuels also failed. The combustion process involved proved unexpectedly complex, and the promised additional energy was not forthcoming.

火箭燃料中的硼添加剂也失败了，其中涉及的燃烧过程出乎意料地复杂，而且所承诺的额外能量并没有到来。