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单词 cryogen
释义
cryogen
(once / 1688473 pages)
n

WORD FAMILY
cryogen: cryogens
USAGE EXAMPLES
But the big machines are expensive to make, use a lot of energy and require costly cryogen liquids like liquid nitrogen to keep them cool.
Washington Times(Jun 04, 2015)
n a liquid that boils at below -160 C and is used as a refrigerant
Hypo|Hyper
liquid nitrogen
nitrogen in a liquid state
liquid air
air in a liquid state
refrigerant
any substance used to provide cooling (as in a refrigerator)
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