耦合缝 meaning in English

coupling slit
coupling slot

Analysed effects to coupling efficiency and fields in resonator caused by size change of coupling slots , and lots of simulation involved also
分析了第一腔中耦合缝的尺寸变化对耦合效果，腔内场结构的影响，并作了大量仿真计算和分析比对；
Basing on the theories of finite element method , analysed computer simulation of high frequency structure in resonator ; 3 . compared effects to resonate frequency and fields caused by coupling slots of buncher in different azimuth ; 4
从有限元理论的角度出发，对计算机仿真计算谐振腔内高频场结构进行了分析探讨； 3比较了调制腔部分耦合缝的位置变化对谐振频率及腔内场的影响； 4