Therefore, to sustain a flame at a nozzle attached to a hydrogen generator the burning velocity of the hydrogen gas must be reduced.

因此，要保持氢气的火焰在燃烧喷嘴连接到一个氢发生器的速度必须降低。

youdao

To get pure hydrogen from water or natural gas, you have to use a purification process that requires lots of energy that's obtained by burning coal or oil.

如果要从水或者天然气中获取纯氢，那么你就必须警醒能量消耗巨大的提纯。这种提纯过程所使用的能量则是来自于燃烧煤或者石油。

youdao

Because of the hydrogen gas unusually high burning velocity, hydrogen gas has been ruled out, by these prior investigators as a substitute fuel.

由于氢气燃烧速度非常高，氢气已被排除的速度，满足如此高的这些事先调查作为替代燃料。

youdao

Engineers have built a contraption of water heater size that strips hydrogen out of natural gas while burning the carbon to provide heat for the home.

FORBES: Engineers Rule

Gasification of coal offers the potential to turn dirty burning hydrocarbons into cleaner burning liquid fuels, such as synthetic natural gas, jet fuel and gasoline, as well as hydrogen for fuel cell use, a developing field.

FORBES: See Who Got Really Rich This Week: LinkedIn IPO Riches, The Babe Ruth of Insurance & More