hydraulic efficiency folding hatch cover
液压流量控制 hydraulic efficiency flow control 液压折叠式舱口盖 hydraulic efficiency folding hatch cover 液压折叠式二层甲板舱口盖 hydraulic efficiency folding tweendeck hatch cover ..
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hydraulic efficiency folding hatch cover
液压折叠舱口盖
以上为机器翻译结果，长、整句建议使用 人工翻译 。