derrick crane


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derrick crane

[′der·ik ‚krān]
(mechanical engineering)
References in periodicals archive ?
What about the derrick crane! It was capable of lifting seven tons and must have weighed at least 10 tons plus and is stood on a pile of hardwood blocks with the legs supported by the concrete blocks.
Export of ships derrick cranes jumped by 105.90 per cent to $134.89 million from $65.51 million.