Space information computing platform and the direct analysis of3-D spatial substance will be the main characteristics of the new generation GIS.
空间信息计算平台、3维空间实体的直接分析将是新一代地理信息系统的主要特征。
By the analysis of airborne gravity measurement data, this paper constructs a space covariance function model with spatial characteristics.
本文通过对航空重力测量数据的分析，建立起具有空间相关特性的空间协方差函数模型。
On the basis of phase space analysis about measured vibration signals, the characteristics of special nonlinear autonomous vibration about the structure included in the system were obtained.
在实测的振动信号相空间分析的基础上，得到系统所包含的结构振动的特殊非线性自主振动的特征。
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