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封口机
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〔seal〕
A device that joins two systems or elements in such a way as to prevent leakage.
封口机
:用这种方式连接两个系统或元素以防渗漏的装置
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elevate
elevated
elevated place
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elevated railroad
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elevation
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eleven
eleven-fifty
eleven-thirty
eleven-thousand
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更新时间:2026/8/2 22:38:24