一次场 meaning in English
primary field
Examples
- The second chapter is about model experiment study , it introduces purpose , scheme , equipment and experiment contents having copperplate and copper ball as object by comparability rule experimenting plenty of physical models , deals with experiment data and makes second field attenuation voltage curves first field isoline both single aperture and mutli - aperture in different situation . in the end , it obtains best depth of multi - aperture source
利用相似性准则进行大量的物理模拟实验，实验观测中以铜板和铜球作为目标体，详细介绍了模拟实验研究的目的、方案、使用设备以及实验内容，并对实验数据进行了处理分析，作出了不同模拟条件下单、多孔径的二次场衰减电压曲线和一次场等值线图，找出多孔径作发射源的探测最佳深度。 - The third chapter is experiment analyses of multi - aperture transient electromagnetic method , it analyzes multi - aperture transient method in theory and discusses radiation direction characteristic of first field by means phased array theory and integrating result of experiment contrast . according to kinematics character it also brings forward similar interference concept and analyzes reason of similar interference phenomenon , it gained footing between similar interference item and depth on the base of it and experiment formula
借助于相控阵原理的思想，结合模拟实验观测值对比结果，对多孔径tem方法进行模型分析，详细讨论了多孔径一次场的辐射方向特性，利用光波的运动学特征提出类相干的概念，分析了多孔径tem辐射源存在类相干现象，推导出类相干实验公式，并得出类相干项与多孔径框边长以及埋深的关系表达式和。