marine through-hull fittings and sea-valves
船用贯穿船身的配件和舷侧进水阀 (Marine through-hull fittings and sea-valves ) 地面非金属电缆管道和配件 (Nonmetallic surface raceways and fittings ) .
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marine through-hull fittings and sea-valves
船用贯穿船体配件和船用阀门
以上为机器翻译结果，长、整句建议使用 人工翻译 。