... volute蜗壳(泵) polar crane环形吊车 heat insulation保温,隔热 ...
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... 回油泵dump pump 回转式吊车polar crane （安全阀）回座压差blow-back ...
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polar crane in reactor building 反应堆厂房环形吊车
polar bridge crane [机] 旋转桥式起重机
polar gantry crane 旋转龙门起重机
The invention discloses a method for connecting a circular track with a bearing-rail beam of a polar crane, relating to a polar crane for a nuclear power station.
环行起重机的环形轨道和承轨梁的连接方法，涉及核电站用环行起重机。
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