It discusses the energy changes of working elevator in 5 classifications, analyzes energy saving principals of elevator with variable counterweight displacement regarding each classification.
将普通电梯工作时的能量变化情况分成5类进行了讨论，并对在各类情况下对重位移可变式电梯的节能原理进行了分析。
It discusses the energy changes of working elevator in 5 classifications, analyzes energy saving principals of elevator with variable counterweight displacement regarding each classification.
将普通电梯工作时的能量变化情况分成5类进行了讨论，并对在各类情况下对重位移可变式电梯的节能原理进行了分析。
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