最終更新日:2025/11/26

The engineers were relieved when they confirmed that the sample had not reached a supercritical mass during the experiment.

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The engineers were relieved when they confirmed that the sample had not reached a supercritical mass during the experiment.

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実験中にその試料が核連鎖反応を維持するのに必要な量を超える核分裂性物質の質量に達していないと確認され、技術者たちは安堵した。

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