This suggests that bacterial chemosynthesis is not a sufficient source of nutrition for these creatures.

这表明细菌的化学合成并不是这些生物的充足营养来源。

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But a Johnson Space Center source who asked not to be identified said there's a sufficient amount of lunar material on which scientific analysis has been completed to satisfy the requirement the transfer would not compromise such studies.

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"Even if some of his statements are misleading by their negative implication that Mr. Bakaly was not a source of information that he in fact supplied or confirmed, such a finding does not provide a sufficient basis for a criminal contempt conviction for making false statements, " Johnson wrote in a 50-page ruling.

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