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- pdd abbr.predental discomfort 前齿骨的疼痛,probability distribution density (function) 概率分布密度(函数)
- pdf abbr.point detonating fuse 弹头信管,弹头(引爆)引信,probability density function 概率密度函数,probability distribution function 概率分布函数
- pdh abbr.past dental history 既往牙病史
- pdi abbr.point-diffraction interferometer 点衍射干涉仪,powered-descent initiation 动力下降开始,primary depressive illness 原发性抑郁症,pre-delivery inspection 交货前检查
- pdl abbr.population-doubling level 群体倍增水平,poundal 磅达(力的单位),power door locks 动力门锁
- pdm abbr.pulse delta modulation 脉冲δ[增量]调制
- pdp abbr.parallel distributed processing 平行分布式处理
- pdq abbr.pretty damn quick 马上,立即
- pdry abbr.People's Democratic Republic of Yemen 也门人民民主共和国
- pds abbr.potential differences 电位差,电势差
- pdsa abbr.People's Dispensary for Sick Animals <英>“人民”兽医药房,草图设计与系统分析(Predesign and Systems Analysis)
- pdt abbr.potentially dangerous taxpayer 潜在危险纳税人,power distribution trailer 配电拖车,practice delivery torpedo 投放鱼雷演习
考试词汇表