Both it and its descendants, so-called buckytubes, which are cylindrical molecules made of pure carbon, are still much admired, but they have not yet lived up to their promise.
富勒烯被发现时也曾被誉为神奇物质，它及其被称为巴克管的由纯碳组成的圆柱形分子衍生物，至今被人们所推崇，但是它们都没有达到人们所预期的高度。
The splot command is Cartesian by default but can also support spherical and cylindrical coordinates.
splot 命令默认使用的是笛卡儿坐标系，不过也可以支持球面或柱面坐标系。
The majority of wiring and lighting were placed within a metal cover, but two cylindrical spotlights are used to focus the light on the boardroom table.
大多数的布线和照明被安置在金属覆盖层内，同时两个圆筒形的聚光灯用于聚集光线，照射在会议桌上。
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