In May 2002, developers created GPLed Quantum GIS (QGIS), a project aimed at beginning and intermediate users who need to access, display, and possibly edit GIS data sets.
年5月,开发人员开发了GPLed Quantum GIS (QGIS),该项目面向需要访问、显示和可能编辑GIS数据集的初学者和中间用户。
Although they do afford some incremental benefits, such as enhanced project communication, they are not capable of providing a quantum leap in productivity, quality, or time to market.
虽然它们提供了一些增加的好处,例如增强的项目交流,但是它们不能提供生产力、质量,或投放市场时间方面的巨大突破。
From analysis of the classic quantum crypt-key allotment agreement called BB84, problems existing in correspondence efficiency are discovered. A new improvement project is put forward.
从分析经典量子密钥分配协议——BB 84协议入手,发现了其在通信效率上存在问题,并由此出发提出了一个新的改进方案。
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