机械专业英语词汇 ... NAK (negative acknowledge character) 否定字符，否定信号 NaK cooled reactor 钠钾冷却[反应]堆 naked 裸的，无保护的 ...
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Nak-cooled reactor 钠钾冷却反应器
reactor NaK-cooled 钠钾冷却反应器
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The Soviet RORSAT radar satellites were powered by a NaK-cooled reactor. Apart from the wide liquid temperature range, NaK has a very low vapor pressure, important in the vacuum of space.
相当大的温度范围内仍然是液态，此外，钾钠合金蒸气压非常低，这一点在真空条件下显得尤为重要。
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