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1·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。

2·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。

3·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。