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P 开头的英语单词（共 269,166 个）
permanent dunnage
固定垫舱物
permanent durable paper
= acid free paper
permanent dye
持久染料;不变色染料
permanent dynamic speaker
永磁动圈式扬声器
permanent dynamic storage
[计] 永久动态存储器
permanent earth
永久地网,永久性接地
permanent echo
[电] 永久回音
permanent education
终身教育
permanent effects
永久效应
permanent electric dipoles
[网络] 永久电偶极
permanent elongation
持久伸长;永久伸长;残余伸长
permanent elongation stress
[网络] 永久伸长应力
permanent embossed finish
耐久性拷花整理
permanent employee
[网络] 雇员
permanent employment
[经] 终身偏用
permanent environmental effect
永久性环境效应
permanent envoy
[法] 常驻使节
permanent error
[计] 永久误差, 永久错误
permanent eruption
永续喷发
permanent establishment
[经] 常驻机构
permanent exhibition
[网络] 常设展；常设展览；基本陈列
permanent expansion
持久膨胀;余留膨胀
permanent experiment
长期试验
permanent extension
永久延伸[变形]
permanent failure
[计] 永久失效