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单词
solid helium
释义
solid helium
solid helium
[
′säl·əd ′hē·lē·əm
]
(cryogenics)
A certain state which is not attained by helium under its own vapor pressure down to absolute zero, but which requires an external pressure of 25 atmospheres at absolute zero.
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更新时间:2025/10/14 23:13:12