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Terms for subject Nautical containing 活度 | all forms | in specified order only
ChineseEnglish
低比活度 LSA-1非裂变的或预计裂变的放射性物质radioactive material, low specific activity LSA-1 non-fissile or fissile-excepted (UN 2912)
活塞平均速度piston mean speed
活塞运动速度velocity of piston