本文在地图数据库的基础上，探讨了复合目标的建立问题。

In this paper, the problem about building complex object is discussed.

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研究了FDTD处理等离子体及具有火箭喷焰的复合目标的电磁散射问题的相关方法。

The relative techniques to FDTD method for tackling the scattering field of plasma and complex object involving rocket plume are proposed.

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对于各目标，跟踪复合名称或者应该跟踪的度量片段，以及应该跟踪的数据类型。

For each target, the tracing compound name or fragment the measurement should be traced to, and the data type that it should be traced as.

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