液压舱盖泵 hydraulic efficiency hatch pump ; hydraulic hatch pump
液压操纵舱口盖 hydraulically-operated hatch covers
液压舱口盖 hydraulic hatch cover
液压驱动舱口盖 hydraulic-driven hatchcover
液压折叠式舱盖 hydraulic folding hatchcover
电动液估压式舱口盖 electro-hydraulic hatchcover
采用连续凸形液舱舱盖 Continuous Tank Cover
舱口盖液压控制装置 hydraulic control device for hatch cover
电动液压舱口盖 electrohydraulic hatch cover
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