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讨论了各种防爆绞车的调速性能，特别是绞车下放负载时的调速性能，指出选择防爆绞车调速方式时应注意的问题，最后提出一种新型调速方式。
The speed governing performance of various explosion-proof winches is discussed, especially when the winch is under load. The problems that should be paid attention to when selecting the speed-regulating winch are pointed out. Finally, a new speed regulation method is proposed.