问题
问答题 简答题
电机发热但不能启动?
答案
参考答案:
等到电机冷却后,常关的热开关触点会自动复位;当电机冷却后,检查热敏电阻的接线端子两端,确认热敏电阻是否闭合;检查每小时的操作次数和其承受力是否和执行机构相符合;检查阀门的操作时间是否越过了原设计时间;最后一定要找出电机不正常发热的原因。
电机发热但不能启动?
参考答案:
等到电机冷却后,常关的热开关触点会自动复位;当电机冷却后,检查热敏电阻的接线端子两端,确认热敏电阻是否闭合;检查每小时的操作次数和其承受力是否和执行机构相符合;检查阀门的操作时间是否越过了原设计时间;最后一定要找出电机不正常发热的原因。
完形填空. | ||||
One day, the wind starts an argument (争论) with the sun. "I'm much __1__ than you are!" says the wind. "No."answers the sun, "I'm much stronger than you are!" While they are arguing they see a man walking down the road. He is wearing a heavy __2__. The sun says to the wind "Now let __3__see which of us can make the man take off his coat, then we will know __4__ is stronger. " First the __5__ tries. It begins to blow very hard. It blows so hard that the man pulls his coat round him. The wind is _ 6 _ with the man. Then the wind says to the sun, "Now it's your__7__. Let me see if you can make him take off his coat " The sun __8__ to shine on the man. Soon it gets very hot! The man __9__ his coat The argument is __10__. | ||||
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