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把灯泡剩下的铁皮用改锥撬起一点，使之与灯座分离开一些，把尖嘴钳伸进去夹住，就能拧动了。或者通电后把食指放进去，融化后冷却，再转动食指...
eglington
(eglington)
(#334016@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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