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单词
molecular beam
释义
WordReference Random House Unabridged Dictionary of American English © 2024
molec
′
ular beam
′
,
[
Physics.
]
Physics
a stream of molecules freed from a substance, usually a salt, by evaporation and then passed through a narrow slit for focusing, for investigating the properties of nuclei, atoms, and molecules. Also called
molec
′
ular ray
′
.
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更新时间:2025/7/31 11:33:24