查看完整版本 : 屋宇設備功課問題

yukwan007 2016-5-12 10:50 AM

屋宇設備功課問題

Calculate the theoretical rating of a motor, which has a duly cycle of 3.0 kW for 2 min, 5 kW for 2 min , 8 kW for l min and stopped for 4 min.
條問題點計算?



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查看完整版本: 屋宇設備功課問題