In order to express and process mixed-type incomplete information in relational database, a - simplified expanded relational model is given.
为了能够表示和处理关系数据库中这种混合类不完全信息，文中最后给出了一种简化的扩展关系模型。
A new type matrix-mixed DOA matrix is formed with the information of two identical translation subarrays.
本文利用两个具有位移特性的二维传感器子阵列信息构成一种新的矩阵——混合波达方向矩阵。
A new type matrix-mixed DOA matrix is formed with the information of two identical translation subarrays.
本文利用两个具有位移特性的二维传感器子阵列信息构成一种新的矩阵——混合波达方向矩阵。
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