本文介绍了用单层绕组和换相法设计远极比变极电机的方法。
The paper presents a method to design wide-ratio pole-changing motor by using single-layer winding and phase changing.
基于判断系数观点，本文提出了用于生产实际中的远极此单绕组双速电机的一些典型方案，同时对这些方案进行了分析及试验验证。
Some typical winding schemes for far pole-ratio pole-changing machines are proposed in view of judging factor, and the analysis and experimental study of these schemes are shown.
再则从2.4米到3.6米远的地方阅读充满屏幕的文字，是个极耗费眼力的挑战——这是一般人坐看电视的距离。
Then there is the eye-straining challenge of reading screenfuls of text from 2.4 m to 3.6 m away — the distance most people sit from their TV sets.
以很多小段赫芝偶极之完整电磁场合成一任意线电流之近场与远场电磁场。
The near and far electromagnetic field are synthesized by summation of the electromagnetic field of short current segments or Hertz dipoles.
在远庄园欢度周末，使弗雷德和我极感高兴，我简直不知道眼前还有什么其他事情能比得上它。
I can't think of anything Fred and I would enjoy more right now than a weekend at Far Acres.
但是在水深只有几十米的极浅海海域，无法满足记录远场子波的要求。
But the demand of recording far-field wavelet can't be met when water depth is only tens meters in ultra-shallow sea area.
从而指出，非无穷远三极剖面法不仅能够有效地圈定出油气藏的边界范围，而且还能实现对油气藏埋藏深度的计算。
It is pointed out that non-infinite three-electrode profiling is able to map reservoir boundary and to estimate reservoir depth.
给出手征媒质中电磁势满足的时谐波动方程，运用并矢代数方法求解了电磁势的并矢格林函数，以偶极振子为例研究了手征媒质中的远区辐射场性质。
Time--harmonic wave equations of electromagnetic potential in chiral media are given, the dyadic Greens function is solved by using dyadic algebraic method, then.
给出手征媒质中电磁势满足的时谐波动方程，运用并矢代数方法求解了电磁势的并矢格林函数，以偶极振子为例研究了手征媒质中的远区辐射场性质。
Time--harmonic wave equations of electromagnetic potential in chiral media are given, the dyadic Greens function is solved by using dyadic algebraic method, then.
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