... 负载自平衡装置 selflevelingdevice 轴推力平衡装置 axialthrustbalancingapparatus 弹簧平衡装置 spring equilizing device ...
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短语
弹簧式上辊平衡装置
top roll spring balance arrangement
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spring equalizing device
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spring equilizing device
spring equalizing device
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