PDE=Partial Differential Equation 偏微分方程
PDabbr.螺纹中径(=pitch diameter)abbr.邮区(=postal district)
PD Estimation违约率估计
PD measurement局部放电试验
PDP television等离子电视
PDC discounting远期支票贴现
Pd - Ag alloy钯-银合金
PD radar seeker脉冲多普勒雷达导引头
Pd - C catalyst钯碳催化剂
Pd/BC catalyst钯/竹炭催化剂