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单词
atomic mass
释义
atomic mass
[ǝ`täm·ik `mas]
PHYSICS
The mass of a neutral atom usually expressed in atomic mass units.
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back range
back reef
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backrope
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backsawing
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backscatter radar
backset
back-set bed
backshore
backshore beach
backshore terrace
back shot
backsight
backsight method
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