这种窄带宽网络已不能满足工作需要，网络扩充升级势在必行。
Therefore, such narrow band network cannot meet the needs of design work so the expansion and staging of network are imperative.
这项计划将使哥伦比亚的双车道道路长度变为原来的两倍，继续升级波哥大机场，重修铁路以及扩充船舶运输。
It would double the length of Colombia’s dual-carriageway roads, continue upgrading Bogotá’s airport, revive railways and expand shipping by boat.
可以升级的快擦写BIOS可以通过软盘进行升级，从而可以确保将来与信的芯片、扩充卡等相兼容。
Flash upgradeable BIOS can be upgraded through the floppy disk to ensure future compatibility with new chips, add-on CARDS etc.
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