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。
2
Three-phase halfwave 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.
By researching the magnetization process and remanence characteristic of the core, the magnetic exciting status of winding the currentwave of the system during the half cycle is analyzed.