介绍了一种由折叠臂偶极天线和并联介质块组成的小型化超宽带天线。
A kind of ultra wideband (UWB) antenna, which consists of an arm-folded dipole antenna and a dielectric block, is proposed.
分析了滞后臂串联二极管的全桥零电压零电流开关（ZVZCS）变流器的工作原理并给出了主要设计步骤。
The analysis and design of a ZVZCS FB-PWM converter with two diodes in series with the lagging leg is pre- sented.
上主在万民眼前显露了自己的圣臂，大地四极看见了我们天主的救恩。
The Lord hath prepared his holy arm in the sight of all the Gentiles: and all the ends of the earth shall see the salvation of our God.
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