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单词
echelon maintenance
释义
echelon maintenance
美
英
un.
分级维修
英汉
网络释义
un.
1.
分级维修
1.
分级维修
maintenance ... direct maintenance 直持维修费用
echelon maintenance
分级[梯队]维修
effective maintenance 有效维护[管理] ...
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ice nip
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ice nucleation protein
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ice-pail experiment
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更新时间:2026/7/1 18:29:30