按这种方式使用的二极管叫做整流管.A diode used in this manner is called a rectifier.每条充电线路可容纳容量为20―25安培的整流装置.Rectifier units with a capacity of 20 to 25 amperes for each charging circuit are acceptable.产生平均值移动的过程叫做整流.The process of produ...
'What is the matter with Signora Anna?' he whispered, horror-struck at her vacant face.“安娜夫人怎么啦？”他惊恐万分地看着她那失神的脸小声问道。He whispered that he had got a new job.他低声说他已找到了新工作。'I thought you and I were going to sp...
铜是热和电的良导体.Copper is a good medium for the conduction of heat and electricity.木头是热和电的不良导体.Wood is a poor conductor of heat and electricity.铜是电的良导体.Copper conducts electricity well....
They have just returned from faraway places with wonderful stories to tell.他们刚从遥远的地方回来，有很多精彩的故事要讲。She smiled with a faraway look in her eyes.她微笑着，眼神缥缈恍惚。Molly turned away and gazed off into space, a faraway look in her e...