On applying the diffraction theory and with the aid of the reciprocity theorem, an approximate formula for the radiation field of a slot cut in a metal sheet of finite size is derived.
本文应用绕射理论并借助于互易定理，导出了一个在有限尺寸金属平板上割出的一条裂缝的近似辐射埸公式。
Slots with different depth were made by WEDM in metal sheet of ST12 to simulate slot-type defects.
在ST12冷轧板上用线切割加工出不同深度的狭缝来模拟钢板中缝类缺陷。
The company mainly produces nc slot machine, PLC slotting machine, CNC punch, CNC cutting machines, bending machines, School-aircraft sheet metal machining, molding machinery.
公司主要生产数控开槽机、PLC全自动开槽机、数控冲床、数控剪板机、折弯机、校平机等金属板材加工、成型机械。
The company mainly produces nc slot machine, PLC slotting machine, CNC punch, CNC cutting machines, bending machines, School-aircraft sheet metal machining, molding machinery.
公司主要生产数控开槽机、PLC全自动开槽机、数控冲床、数控剪板机、折弯机、校平机等金属板材加工、成型机械。
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