题目内容
单相半控桥整流电路的两只晶闸管的触发脉冲依次应相差多少度?( )
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单相半波电阻性负载可控整流电路中,控制角α的最大移相范围是多少?输出最大直流电压的平均值等于整流前交流电压的多少倍?
1. (make sth.) continue and make progress （使）进展2.try to stop thinking about a problem, argument, or disagreement 撇开不理，不考虑3. succeed 获得成功4. a. requiring careful handling 难以处理的，微妙的5. before every other consideration; especially 最重要的是6. a. feeling happy because sth. unpleasant has stopped or has not happened 宽慰，欣慰7.n. the state of being a parent 父母身份8. a. firmly established or fixed 稳定的9. vt. make (sth.) less unpleasant, painful, severe, etc. 减轻，缓和10. n. the feeling of being very worried about sth. 忧虑，焦虑11. n. a strong desire for sth. 强烈的欲望
1. a. extremely interesting and attractive 迷人的；极具吸引力的2. n. a job that lasts for a short time, that sb., especially a student, does in order to gain experience 实习岗位（工作）3. a. not established for the purpose of making a profit 非营利的4. move, change, or do sth. without any plan or purpose 无目的地漂泊5. vt. look forward to; expect 预期，期望
红绿色盲中，男性发病率比女人高，这种遗传方式属于
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