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铯原子
铯原子
telecom.
cesium atomic
|
钟
钟
gen.
bell
;
o'clock
;
ticker
;
tikker
;
timepiece
;
watch
archit.
bell jar
dart.
clock
met.
bell
to phrases
铯原子
钟
telecom.
cesium atomic
铯原子
:
7 phrases
in 4 subjects
Electronics
2
General
1
Metallurgy
1
Space
3
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