光电英语词汇
有孔胶片 perforated film穿孔镜 perforated mirror穿孔板 perforated plate穿孔纸带 perforated slip穿孔带读数器 perforated tape reader多孔管 perforated tube胶片孔，孔眼(2)穿孔，凿孔 perforation (1)穿孔机(2)钻孔机 perforator (1)性能指标 performance index近中心点 pericentre周摆级 pericycloid近焦点 perifocus近中心凹 perifovea近地点 perigee周角 perigon近日点 perihelion视野镜 Perimeter视野测量法 perimetry周期 period光学循环周期 period of otpical cycle简谐运动周期 period of S.H.M周期的 periodic周期边界条件 periodic boundary condition周期误差 periodic error周期频率特性滤波器 periodic filter语际翻译 版权所有
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