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Terms for subject Nautical containing 永久 | all forms | in specified order only
ChineseEnglish
在海上保持永久关闭的开口openings permanently kept closed at sea
永久开口部permanent openings
永久性标记permanent label (LPG system, LPG 系统)
永久性连续围板permanent continuous coaming
永久系泊系统permanent mooring system