计算机技术应用于地图集的制作已有多年了，目前生产单位制作地图集时所使用的软件五花八门，由此而产生的生产效率也各不相同。
It has been several years since we used computer technology in cartography making. Now producers use various softwares to make cartography, and this leads to different productive efficiency.
计算机技术应用于地图集的制作已有多年了，目前生产单位制作地图集时所使用的软件五花八门，由此而产生的生产效率也各不相同。
It has been several years since we used computer technology in cartography making. Now producers use various softwares to make cartography, and this leads to different productive efficiency.
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