清单2显示具有4个元素的阵列构造函数，其值分别由NULL常数、变量、文字和标量子查询提供。
Listing 2 shows an array constructor with four elements with values given by the NULL constant, a variable, a literal and a scalar sub-query, respectively.
依据被测介质性质，在现有实验设备条件下，提出了一种标量法测量低损耗薄膜介质介电常数的新方法。
A new scalar method of measurement for low loss film medium is presented based on electric properties of measured medium under the present condition of laboratory.
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