Bacteria feed on this oil and release hydrogen sulfide gas.

细菌以这种油为食，并释放硫化氢气体。

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You can release hydrogen molecules at any time.

你随时都可以释放氢分子。

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This would convert zirconium into zirconium oxide and release hydrogen.

这会将锆转化成氧化锆，并释放出氢。

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If it is ultimately fuelled by methanol, it needs a chemical reactor, known as a reformer, to release the hydrogen.

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This meant likely degradation of their zirconium alloy cladding, the possible release of hydrogen, and - by Tepco's admission - the risk that a nuclear chain reaction could begin.

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It is still unclear whether the hydrogen represents the release of water by the heat of the impact, or whether it simply sheds light on the way that water is formed on the Moon from its chemical constituents.

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