directive gain 定向系数 ; [电讯] 定向增益 ; 定方向增益
antenna directive gain 天线定向增益 ; 天线方向性增益 ; 天线指向增益
directive gain of antennas 天线的方向性增益
It has a directive function in a certain sense for technicians in the measuring wall thickness to gain accurate and reliable data.
对化工企业技术人员进行壁厚测定获得准确、可靠的数据有一定的指导意义。
In this paper, the main valve width and directive gain for uniform linear array of antennas in phased scanning are estimated.
本文对均匀直线阵列天线在相控扫描过程中的主瓣宽度和方向性系数进行了估算。
If these variables are not used within a script, having this directive on will result in a performance gain.
如果这些变量没有在脚本总使用，启用这个变量会提高服务器性能。
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