万灵丹
发表于 2025-3-25 05:04:54
6楼
异端
发表于 2025-3-25 11:25:53
7楼
不规则
发表于 2025-3-25 15:07:26
7楼
Simulate
发表于 2025-3-25 15:58:31
7楼
有角
发表于 2025-3-25 20:30:34
7楼
无畏
发表于 2025-3-26 03:49:58
8楼
Sigmoidoscopy
发表于 2025-3-26 05:59:33
8楼
Comprise
发表于 2025-3-26 12:07:53
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祖传财产
发表于 2025-3-26 15:35:55
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CRAB
发表于 2025-3-26 20:42:46
Power Supplies for Adjustable Speed AC Drives,exceeds that of line-commutated converters of a similar rating. While part of the cost for the converter can be recovered by the reduced cost of the AC motor as compared to a DC machine of comparable rating, the overall cost of the AC drive may still be somewhat higher than that of a standard DC drive.