在二十世纪九十年代苏联解体后，美国卫星影像观测到了此处进行的大型发掘工程，而那时正值鲍里斯? 叶利钦（Boris Yeltsin）亲西方时期。
Large excavation projects have been observed by U.S. satellite imagery as recently as the late 1990s, during the time of Boris Yeltsin’s pro-Western government after the fall of the Soviet Union.
亲市场阵营应对危机的策略，大体上因循的是上世纪30年代的套路。
The response to the crisis among those in the pro-market camp is much on the lines of the 1930s.
胺能参加与卤代烷的亲核取代反应。
Amines can engage in nucleophile substitution reaction with alky.
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