KR
 知識表示


 Kr 符號



 Kr
      n 1: a colorless element that is one of the six inert gasses;
           occurs in trace amounts in air [syn: krypton, {atomic
           number 36]
      2: a communist organization formed in Cambodia in 1970; became
         a terrorist organization in 1975 when it captured Phnom
         Penh and created a government that killed an estimated
         three million people; was defeated by Vietnamese troops
         but remained active until 1999 [syn: Khmer Rouge, {Party
         of Democratic Kampuchea, Communist Party of Kampuchea]