降: 降动词1.(投降) surrender; capitulate 短语和例子宁死不降 rather die than surrender2.(降伏) subdue; vanquish; tame 短语和例子一物降一物。 there is always one thing to conquer [overcome] another.
阻: 动词(阻挡; 阻碍) block; hinder; impede; obstruct 短语和例子劝阻 dissuade sb. from; advise sb. not to; 拦阻 block; hold back; 阻滞 impede; hinder; obstruct; 风雨无阻 stopped by neither wind nor rain
电压降: fall of potentialp.d. = potential droppotential fallvolt dropvoltage depressionvoltage dropvoltage-dropvolts lost
