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PD    
图片描述符 ; 公共域,( PUBLIC DOMAIN
的缩写,指公益软件而言,这类软件的使用是完全免费的)

图片描述符 ; 公共域,( PUBLIC DOMAIN 的缩写,指公益软体而言,这类软体的使用是完全免费的)

Pd
n 1: a silver-white metallic element of the platinum group that
resembles platinum; occurs in some copper and nickel ores;
does not tarnish at ordinary temperatures and is used
(alloyed with gold) in jewelry [synonym: {palladium}, {Pd},
{atomic number 46}]

Pd \Pd\ prop. n.
The chemical symbol for {palladium}, an element of the
platinum group, of atomic number 46.

Syn: palladium.
[WordNet 1.5]



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