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词汇
封离
类别
英汉汉英翻译词典
释义
封离
封离
[fēng lí]
1.
■
sealing off
常用词组
1.
■
封离抽气系统 sealed pumped vacuum system;
2.
■
封离管 {物} sealed-off tube;
3.
■
封离真空系统 sealed-off vacuum system
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更新时间:2026/7/20 12:54:46