Earthquake has a spatial and temporal distribution of.

地震具有一定的时空分布规律。

Based on the characteristics of spatial and temporal distribution, the rapid update of geographical information data has become a research hotspot.

地理信息具有空间分布特性和时态特性，地理信息数据的快速更新已成为目前研究热点。

In this paper, spatial and temporal distribution characteristics of city ambient air pollution in China were summarized based on API data that were published by SEPA.

本文应用国家环保总局发布的城市空气质量日报的数据，研究了2001~2004年我国主要城市空气污染的时空分布特征。

Taking Xizhuang watershed for instance, the study applied by quantitative monitoring and participatory approach for assessing the spatial and temporal distribution of water resources and explored the…

以西庄河流域为例 ，通过定量监测研究山地流域水资源的时空变化规律 ，并通过供需现状参与式评估探讨山地流域的水资源的可持续利用和保护。