However, the ZVS operation is difficult to achieve under light load condition for the AHB topology. 然而，对于非对称半桥拓朴而言，在轻载条件下，开关元件难以实现零电压切换操作。
A lot of repetitions with light weights or exercises are better than a few repetitions with heavy weights or exercises. 大量重复轻负荷重量练习和锻炼要好于较少次数的大负荷重量练习和锻炼。
