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单词
roentgen ray
释义
Collins Concise English Dictionary © HarperCollins Publishers::
roentgen ray
n
a former name for
X-ray
WordReference Random House Unabridged Dictionary of American English © 2024
Roent
′
gen ray′,
Medicine, Physics
(
sometimes l.c.
) x-ray.
1895–1900
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更新时间:2025/11/25 12:28:21