The electric wand in the experiments essentially uses electricity to push the flame away from the burner, detaching it from the fuel source, so it goes out.

实验中的电棒本质上是用电把火焰从燃烧器中推开，把它从燃料源中分离出来，然后火就熄灭了。

youdao

Your body USES carbohydrates as its main fuel source.

你的身体将碳水化合物作为其主要的燃料来源。

youdao

This flow may be strong enough to separate the flame from its fuel source, which may be why the flame goes out.

气流也许强得足够将火焰与燃料来源分离开，可能就是火焰被熄灭的原因。

youdao

(Speaking) Institute director Eric Leonhardt says he's had his eye on the dairy herd as a source of transportation fuel for a long time.

VOA: standard.2010.02.23

' We are moving away from a world with one fuel source to one with a diversity of sources.

FORBES: Magazine Article

Now common sense would be for all to look for a Clean Fuel Source like Wind, Hydro, Geothermal and Solar.

FORBES: Dow Chemical buys NuvoSun for making solar shingles

If you oxidize any hydrocarbon, you generally produce heat, carbon dioxide, and water vapor, assuming a relatively pure fuel source.

FORBES: On Romney's 'Rising Oceans', Time To Get A Bigger Boat