Valve types include Normally Open and Normally Closed valves, for use in fuel, hydraulic, or pneumatic applications.

阀门有常开和常闭两种，可用于燃油，液压或气动应用领域。

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This mixture of plutonium and other radioactive elements couldthen be turned into fuel suitable for use in “fast” reactors.

钚和其它的放射性元素的混合物可以转变成适宜“快”反应堆使用的燃料。

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The collected cooking oil is refined and recycled for use as biodiesel fuel (BDF) in the very same buses, which run on 12 routes through the city.

收集上来的食用油通过提炼，最终变成生物柴油，为运营在该市12条线路上的快速公车提供燃料。

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Under the two countries' plan, Iran would send some of its uranium to Turkey in exchange for fuel for use in a Tehran medical research reactor.

VOA: standard.2010.06.09

Under the scheme, Russia would further enrich the uranium to the 20 per cent purity needed for use in a research reactor in Tehran which produces medical isotopes but is running out of fuel.

VOA: standard.2009.10.24

Extracting platinum from this dust (e.g. for use in fuel cells for hydrogen cars), which originates in catalytic converters, might prove lucrative and would expand the limited amount of platinum available, which does not meet even present demand for it.

FORBES: Recycling Scrap Rare Metals Vital to Future Technologies

Surely at some point in the not too distant future it will be economic, and possibly even revenue generating, for companies to capture their CO2 and sell it on to companies for use in enhanced fuel production.

FORBES: New Markets Emerge for Carbon Dioxide

The HEU Agreements provide for the conversion of approximately 500 metric tons of highly enriched uranium contained in Russian nuclear weapons into low-enriched uranium for use as fuel in commercial nuclear reactors.

WHITEHOUSE: Executive Order--Russian Highly Enriched Uranium