光学&天文学专业术语英语翻译
周期波 periodic wave接口设备调整机 peripheral coordinator接口设备 peripheral equipment接口设备 peripheral unit潜望镜 periscope潜望六分仪 periscopic sextant永冻层 permafrost恒定极光 permanent aurora永久基准面 permanent base level永久水平点 permanent bench mark，P.M.B永久觇标 permanent geodetic beacon永久磁场 permanent magnetic field永久磁性 permanent magnetism永久磁化 permanent magnetization永久性收缩 permanent shrinkage永久雪线 permanent snowline永久测站 permanent station连续时号 permanent time signal永冻地 permanently frozen ground渗透率 permeability磁导 permeance渗透仪 permeaneter"容许谝?
" permissible accuracy垂直方程式，垂线方程式 perpendicular equation直射 perpendicular incidence语际翻译 版权所有
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