报道一类新型环型笼状化合物—瓜环的合成及分离新方法。
A new family cage compounds-cucurbiturils have been synthesized and separated by using a simple and economic method.
展望2000年，组织者们说环法自行车大赛将有可能在瓜德罗普岛上拉开帷幕。
Looking toward the year 2000, organisers said the Tour DE France could possibly start on the island of Guadelope.
展望2000年，组织者们说环法自行车大赛将有可能在瓜德罗普岛上拉开帷幕。
Looking toward the year 2000, organisers said the Tour DE France could possibly start on the island of Guadelope.
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