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n: in crane operations, a small wire rope attached to the bottom of a load suspended by the crane, which, when grasped by a crew member, allows the crew member to prevent rotation of the load.
a small rope attached to a load being lifted by a crane that allows a person on the ground to help guide or place the load.
© ۱۳۹۲-۱۳۹۷ این اثر شامل قانون حمایت از مولفین بوده و هرگونه کپی برداری از آن ممنوع است.
