... rope guy derrick 绳索人字起重机 mechanical guy derrick 动力牵索吊杆装置 guy derrick crane 牵索人字起重机 ; 牵索转臂起重机 ...
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Derrick guy wire as the special supporting member of downhole derricks, its performance has much impact on the mechanical behavior of derricks.
绷绳作为作业井架的特殊支承构件，其工作特性对作业井架的力学行为有较大影响。
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