p action 比例动作p control 比例控制p.u.calculation 相对值计算pace voltage 阶跃电压packing 填料packing density 存储密度padding condenser 垫整电容器paired cable 双电缆pairs 对pancake coil 扁平线圈pancake winding 盘形绕组panel 盘panel board 配电盘panel meter 配电板式仪表panel mounting 配电盘装配panel voltmeter 配电板式电压表panel wattmeter 盘用瓦特计pantograph 受电弓pantograph type current collector 受电弓paper 纸paper battery 纸电池paper cable 纸绝缘电缆paper capacitor 纸介电容器paper condenser 纸介电容器paper covered wire 纸绝缘线paper insulated cable 纸绝缘电缆paper insulated wire 纸绝缘线paper insulation 纸绝缘paper oil insulation 油纸绝缘paper tape reader 磁带读出器parabola 抛物线parabolic 抛物线的parabolic glass reflector 抛物面反射镜parabolic mirror 抛物面反射镜paraffin 石蜡paraffin oil 石蜡油parallax 视差parallax error 视差parallel 并联的parallel capacity 并联电容parallel circuit 并联电路parallel connection 并联parallel control 并联控制parallel digital computer 并行数字计算机parallel feeder 并联馈路parallel operation 并联运行parallel plate condenser 平行板电容器parallel processing 并行处理parallel register 并行寄存器parallel resonance 并联谐振parallel resonant circuit 并联谐振电路parallel running 并联运行parallel storage 并行存储器parallel system of distribution 并联式配电parallel t network 并联 t 形网络parallel to serial converter 并 串变换器parallel winding 并绕paralleling 并联paramagnetic material 顺磁质paramagnetic resonance 顺磁共振paramagnetic substance 顺磁质paramagnetic susceptibility 顺磁磁化率paramagnetism 顺磁性parameter 参数parameter region 参数区域parameter value 参数值parametric representation 参数表示parametric resonance 参量谐振;参量共振parametron 参数激励器parasitic 寄生的parasitic capacity 寄生电容parasitic current 寄生电流parasitic oscillations 寄生振荡parasitic thermoelectromotive force 寄生温差电动势parent metal 母体金属parity check 奇偶校验parkerizing 磷化处理partial admission turbine 部分进气式汽轮机partial capacity 部分电容partial carry 部分进位partial discharge 部分放电partial discharge indicator 部分放电指示器partial earth 不完善电介体partial earth contact 部分接地partial floating 部分浮动partial load 部分负载partial voltage starting 低电压起动particle 粒子partition 隔壁partition insulator 绝缘套管partitioned access method 分区存取法partitioned data set 分区数据集partly closed slot 部分闭合槽paschens law 帕邢定律pass 通过pass band 通带passage 通路passing light 近光passive 被动的passive circuit 无源电路passive four terminal network 无源四端网络passive network 无源网络passive transducer 无源变换器passive two port network 无源四端网络paste 膏剂pasted filament 钨膏灯丝pasted plate 涂浆极板patch bay 插头板patch board 插头板patch cord 等塞绳patent gazette 专利公极path of winding 线圈支路patrol car 巡视车pattern 方向图pattern recognition 图象识别pause 间歇pd action 比例 微分酌peak 峰peak arc voltage 弧光峰值电压peak attenuation 最大衰减peak current 峰值电流peak detector 峰值检波器peak electrode current 峰值电极电流peak energy 峰值能量peak factor 峰值振幅因数peak forward current 峰值正向电流peak frequency 峰值频率peak hour 峰值负载时间peak indicator 峰值指示器peak inverse current 反峰值电流peak inverse voltage 反峰电压peak let through current 最高通过瞬间电流peak load 峰负载peak load effective duration factor 峰值功率持续时间率peak load power plant 峰值功率发电站peak load unit 尖峰负载机组peak making current of pole of switching device 开关装置峰值闭合电流peak of wave 波峰peak off voltage 峰值截止电压peak on voltage 最大导通电压peak output 峰值输出功率peak power rate 峰值电力费率peak power station 峰值功率发电站peak responsibility factor 峰值负载系数peak reverse gate voltage 峰值反向门电压peak reverse voltage 反峰电压peak shaving 峰值负载抑制peak to average power ratio 峰值与平均功率比peak to peak value 峰 峰值peak to peak voltage 峰间电压peak value 峰值peak value measurement 峰值测定peak value meter 峰值表peak voltmeter 峰值电压表peak working reverse voltage 峰值工状向电压peaking capability 过负载输出功率peaking capacity 峰值输出功率peaking coil 建峰线圈peaking generation 峰值功率peaking transformer 峰值变压器pedestal 基础板pedestal insulator 支座绝缘子peek a boo 同位穿孔检索pellet type arrester 丸形避雷器peltier effect 珀尔帖效应pelton turbine 培尔顿式水轮机pelton wheel 培尔顿式水轮机pen recorder 笔尖记录器钢笔记录器pendant lamp 吊灯pendant lighting fitting 吊灯pendant luminaire 吊灯pendant switch 垂悬式开关pendulum 摆pendulum governor 摆式第器pendulum meter 钟表式计数器pendulum relay 振子继电器penetrability 穿透能力penetrating power 穿透能力penetration 贯穿penetrometer 硬度计penstock 压力水管pentane lamp 戊烷灯per unit calculation 相对值计算percentage bridge 百分率电桥percentage conductivity 百分电导率percentage differential protection 比率差动保护装置percentage differential relay 比率差动继电器percentage line drop 线路电压降百分数percentage modulation 灯度percentage ripple 脉动百分数percussion 冲击percussion welding 冲桓接percussive welding 冲桓接perdictor 预测器perfect combustion 完全燃烧perfect conductor 完全导体perfect dielectric 理想电解质per