This is the key requirement for ensuring that a global system can be designed, built, and maintained efficiently and correctly.
这是确保全球系统能被正确有效地设计、构建和维护的关键需求。
In this paper, we analyze the key techniques for the service precision of Global Navigation satellite System such as time reference, time synchronization, satellite orbit determination, etc.
对影响导航定位系统定位精度的各种因素进行了分析。研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。
Leaf area index (LAI) is not only an important attribute of land surface vegetation system, but also a key parameter for the models of global water balancing and carbon circulation.
叶面积指数LAI不仅是陆表植被系统的一个重要属性，而且是全球水平衡、碳循环等模型中的重要输入参数。
The summiteers will discuss global regulation not just of conventional commercial Banks, but also of other parts of the financial system like hedge funds - a key European demand.
与会者将讨论的全局调整不仅包括商业银行，也包括其他金融系统，像对冲基金(欧洲所急需的)。
The device with global positioning system (GPS) localization and communication with monitor and control center on construction machinery is a key equipment for construction machinery group management.
智能化工程机械的GPS定位与监控中心的通信装置是实现工程机械机群化管理的关键装置。
In this paper, we analyze the key techniques for the service precision of Global Navigation satellite System such as time reference, time synchronization, satellite orbit determination, etc.
研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。
Interaction between terrestrial ecosystem and climate system with the impact of human activities is one of the key scientific issues in the yield of global change research at the present time.
人类活动影响下，陆地生态系统和气候系统的相互作用已成为目前全球变化研究的主要科学问题之一。
Finally, technical problems and other key problems to be solved in constructing the global energy balance system are analyzed in brief.
最后，简单分析了构建全球能量平衡体系需要解决的技术和其它关键问题。
Finally, technical problems and other key problems to be solved in constructing the global energy balance system are analyzed in brief.
最后，简单分析了构建全球能量平衡体系需要解决的技术和其它关键问题。
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