圆柱

1. （打火机用的）电石一种由能产生火星的、坚硬的合金小圆柱体，用于点燃打火机燃料
   A small solid cylinder of a spark-producing alloy, used in lighters to ignite the fuel.
2. 发条盒一圆柱形物，内装含有主发条的表的零件
   The cylinder within the mechanism of a timepiece that contains the mainspring.
3. 拉莱柱一种用于在建筑物中起支撑作用的中间浇铸有混凝土的钢圆柱的商标
   A trademark used for a concrete-filled steel cylinder utilized as a supporting member in a building.

圆的英语翻译：

柱的英语翻译：