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单词
caesium clock
释义
caesium clock
n.
【物】
铯钟(利用铯辐射频率制成的原子钟)
See also
second³, 2
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fazed
fazenda
fazendas
fazendeiro
fazendeiros
fazes
fazing
façade
façonné
faïence
FBA
FBI
FBIs
FBL
f-bomb
FBW
FC
fc
FCA
fcap
FCC
FCCA
FCII
F clef
FCO
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更新时间:2025/3/11 5:38:40