Typewriters used little metal tabs to slew the carriage rapidly over several spaces until it came to rest on a particular column.
打字机使用小小的金属制表键，在有多处空格时快速跳转直至达到特定的栏。
2
The combination of the column repetition together with the inverted trusses, forming a metal clad raked soffit, generate the main facades of the building.
柱子的重复组合连同倒置框桁架形成金属复合斜拱，产生建筑的主要立面。
3
The SS120 column construction lift is composed by metal structure, working mechanism, electrical control and safety protection instrument.