但进度与费用之间存在着密切的内在联系。费用不只是一笔总费用，还存在着时间上的分布。
Secondly, the schedule and the cost have intimate inner connection, and the cost is not be carried out once and be scattered in the constructive period.
通过GIS技术进行道路交通事故的时空分布分析，发现其在空间和时间上的分布规律及其主要影响因素。
The temporal and spatial distribution of traffic accidents and main influencing factors are found through analysis of road traffic accidents based on GIS technology.
其中移动通信技术最主要关注的一个问题就是如何利用有限的频谱资源，满足用户需求在空间和时间上的分布。
The vital problem of the mobile communication is how to using the limited spectrum resource to match the distribution of user demand in the space and time.
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