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原線徑原圈數原單導體面積原導體總面積改圈數變線徑改線徑變圈數
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0.222300.038013271118.7430523551780.250.25178
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12000.7853981634157.07963271001.411.4102
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0.51000.196349540819.634954082000.350.35204
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