问题
问答题
牵引变电所闪光信号什么情况下产生,主要监视什么状态?
答案
参考答案:当断路器分、合闸位置与控制开关WK位置不对应时,位置信号灯正极接到闪光电源母线上而使信号灯闪光。主要用来监视断路器事故跳闸。
牵引变电所闪光信号什么情况下产生,主要监视什么状态?
参考答案:当断路器分、合闸位置与控制开关WK位置不对应时,位置信号灯正极接到闪光电源母线上而使信号灯闪光。主要用来监视断路器事故跳闸。
完形填空 | |||
This is a picture 1 Bill's family. Let's look at 2 picture. Who's the woman 3 a white skirt? 4 Bill's mother. 5 man in the black coat is 6 father. 7 his father? He's a teacher. Where's Bill? He's 8 the tree. Look! 9 the girl. She is Bill's sister. She's only five. She's not 10 school. | |||
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