The space-wave method, suitable for extended surface targets, is a preferable method for permittivity measurement of ground materials at microwave frequencies.
空间波法适合于测量大面积目标的介电常数，所以是测量地物微波介电特性的一种较好的方法。
The space-wave method, suitable for extended surface targets, is a preferable method for permittivity measurement of ground materials at microwave frequencies.
空间波法适合于测量大面积目标的介电常数，所以是测量地物微波介电特性的一种较好的方法。
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