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通电后把食指放进去,融化后冷却,再转动食指... 拔了就不能融化了,估计如果没拔的话,她剪的时候也把保险丝烧了,所以拔没拔都不用再拔了,习习。
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(#334037@0)
Last Updated: 2002-1-14
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Replies, comments and Discussions:
初级问题:加拿大100W灯泡的电阻是多少?1000W电炉丝的电阻是多少?(我用数字万用表测出来的是灯泡11欧,电炉45欧,好象不对!看来我是不会用,谁能指点,谢了)
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