"deuterium bottleneck" meaning in English

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        "A critical stage in the early universe's nucleosynthesis process, in which the temperature was high enough for many photons to have energy greater than the binding energy of deuterium; therefore any deuterium that was formed was immediately destroyed."
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        "(cosmology) A critical stage in the early universe's nucleosynthesis process, in which the temperature was high enough for many photons to have energy greater than the binding energy of deuterium; therefore any deuterium that was formed was immediately destroyed."
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        "(cosmology) A critical stage in the early universe's nucleosynthesis process, in which the temperature was high enough for many photons to have energy greater than the binding energy of deuterium; therefore any deuterium that was formed was immediately destroyed."
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