The harmonic peculiarity of carrier waves of each optimized method and expresses elementary ideas in methods of decreasing switching dissipation above-mentioned essentially.
定性地分析了各优化方法调制波的谐波特性，从本质上分析了它们降低开关损耗的基本思想。
Teaching is not only the organizing means of knowledge elements, but also the carrier of methods and learning process.
教学既是知识要素的组织方式，也是方法和学习过程的传承载体。
Methods Carrier quantitative test and animal test were used to carry out observation on disinfection efficacy and toxicity.
方法采用载体定量试验和动物试验进行了消毒效果和毒性观察。
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