a former communist country in eastern Europe and northern Asia; established in 1922; included Russia and 14 other soviet socialist republics (Ukraine and Byelorussia and others); officially dissolved 31 December 1991
例句
Relations with the USSR are improving. 与苏联的关系正在改善.
In 1986, the first such reactor in USSR came out. 前苏联对高温气冷堆的研制进展比较顺利,1986年第一台模型出台。
Gazetteer Asia: China. Former USSR: Siberia. 亚洲:中国。前苏联:西伯利亚。
Formed shortly after the breakup of the USSR. 东欧凤凰是在苏联解体后产生的恐怖主义组织。
Relationship: Relations with the USSR are improving. 与苏联的关系正在改善。
The chemical institutes of the Academy of Sciences of theUSSR. 苏联科学院化学研究机构。