This arrangement lasted until the 1930s, when the invention of short-wave wireless improved and cut communications costs.
这种安排一直持续到1930年，当时的无线短波改善和降低了通讯费用。
The paper introduces the design method of auto creating system of arrangement diagram for wave winding of rotor for three-phase asynchronous motor.
介绍了三相绕线型异步电动机转子波绕组排列图自动生成系统的设计方法。
No matter what polarization of the incident electromagnetic wave, element's transmission characteristics for the regular triangle arrangement is more stable than that of square arrangement.
但无论入射波是什么极化方式，所设计单元按正三角形布阵时的传输特性都比正方形布阵方式稳定。
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