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单词
valid period
释义
valid period
freq.
4
dict.
2
cmpt.
1
un.
有效期限
[网络]
保质期;证书的有效期限;签证效期
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coal-face winning aggregate
coal facies
coal-factor
coal factor
coal fall
coal fat
coal feeder
coal feeder floor
coal feed point
coal feed regulator
coalfield
coal field
coal-field
coal field area
coal field gas
coalfield prediction
coal field prediction
coalfields
coalfield structure
coal fines
coal fines float-and-sink analysis
coal fines float-and-sink test
coal fire
coalfire
coal-fire
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更新时间:2026/1/15 21:15:17