کلمه telescoping mast یافت شد:
n: a portable mast that can be erected as a unit, usually by a tackle that hoists the wireline or by a hydraulic ram. The upper section of a telescoping mast is generally nested (telescoped) inside the lower section of the structure and raised to full height either by the wireline or by a hydraulic system. Erroneously but commonly called a telescoping derrick.
a portable mast composed of sections nestled inside one another and raised with a winch or a hydraulic cylinder.
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