In general, each value in the enumeration can be an arbitrary scalar SQL expression.
一般情况下，枚举中的每一个值都可以成为任意标量SQL表达式。
You can use a scalar subquery to select a specific value that will be used in the expression of the WHERE clause.
可以使用标量子查询选择将用于where子句的表达式中的特定值。
Both work fundamentally the same way, at compile time the keyword "var" is replaced with the correct scalar or array type for the associated expression.
二者的实现基础完全相同，即在编译时将“var”替换成为分析得到的正确的变量或数组类型表达式。
On the basis of scalar diffraction theory, this paper analyses the chromatic aberration of the diffractive lenses, and obtains the mathematical expression of the dispersion of the diffractive lenses.
基于标量衍射理论，本文分析了衍射透镜的色差，首次得出了计算其色散的数学表达式。
The author bring forward a Gaussian optical beam in a transverse-linearly-polarized state, the expression of its module is the same as the scalar Gaussian beam.
文章提出一种横向激发的任意线偏振高斯光束，该光束场量的模与传统的任意线偏振高斯光束具有相同的模，在源场区，其满足自由空间无源场的场方程。
The author bring forward a Gaussian optical beam in a transverse-linearly-polarized state, the expression of its module is the same as the scalar Gaussian beam.
文章提出一种横向激发的任意线偏振高斯光束，该光束场量的模与传统的任意线偏振高斯光束具有相同的模，在源场区，其满足自由空间无源场的场方程。
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