现在的目标是怎样构建20公里长的芳纶管道，并用一个或多个气球带动并固定管道。
The current proposal sees the construction of a 20km Kevlar pipe tethered by one or more balloons.
采用模板导向法高产率地合成了两个含长链亚烷基桥的芳炔类共轭大环。
The synthesis of the first two arylenealkyne conjugated macrocycles containing long alkylene bridge via Glaser coupling of template-directed tetraacetylenes was reported.
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