The fuel used does not produce a flame in a vacuum.

这种燃料在真空中不会产生火花。

youdao

The algae are ultimately harvested for proteins and oils that make fuel used to run the distillery.

最终这些藻类将转变为酿酒厂运转燃料的蛋白质和石油。

youdao

If we can go to space with improved hybrid rocket engines on half the fuel used now, that would be a giant step.

如果我能够坐在相当于只使用现今火箭所需一半燃料的改良型火箭上太空的话，那将会又是迈出了很大的一步。

youdao

Enriched uranium can be used as fuel for nuclear energy as Iran says or it can be used for nuclear bombs.

VOA: special.2009.09.26

Even coal, the fuel people used to heat their homes, cost twice as much.

VOA: special.2009.01.01

She says a contribution of more than three million Euros from Italy will be used to provide winter kits, including heating fuel to vulnerable families.

VOA: standard.2009.09.13

Think about it: We pay package delivery companies a surcharge for the fuel used to transport our packages.

FORBES: Data Centers: The Energy Problem

It added that the price of fuel used in its ships rose 20%.

BBC: Man with bananas

However, there are some concerns that the fuel used in the probe, which is toxic, will land on the surface.

FORBES: Failed Russian Probe Phobos-Grunt Will Fall To Earth This Weekend