At our current level of technology, no conceivable mix of solar, wind, or wave can meet even half the demand for energy.
依我们现有的技术水平，不能混合开发使用太阳能、风能和潮汐能，所以至多能提供所需能量需求的一半。
By researching the magnetization process and remanence characteristic of the core, the magnetic exciting status of winding the current wave of the system during the half cycle is analyzed.
通过对铁芯的磁化过程、剩磁特性及线圈的激磁状态研究，分析了半波磁势自平衡直流传感器的电流波形。
Three-phase half wave controlled rectifier, hysteresis comparison mode current track control, and realization of SVPWM by S-Function are used as examples to describe the usage of the software.
并以三相半波可控整流电路、滞环比较方式的电流跟踪控制、利用S函数实现空间矢量脉宽调制为例说明了软件的使用方法。
The equivalence principle and moment method are used to derive the expression of equivalent magnetic current in the main cavity excited by the plane wave in the half-space.
利用等效原理和矩量法导出了由半空间中平面波在主谐振腔中激励的等效磁流的表达式；
The equivalence principle and moment method are used to derive the expression of equivalent magnetic current in the main cavity excited by the plane wave in the half-space.
利用等效原理和矩量法导出了由半空间中平面波在主谐振腔中激励的等效磁流的表达式；
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