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腐蚀性物品
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腐蚀性物品
Encyclopedia
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corrosive materials
腐蚀性物品
通常指能灼伤人体组织或对金属等物品造成损坏的固体或液体;具体为与皮肤接触在4小时内出现可见坏死现象,或温度在55℃时,对20号钢的表面均匀腐蚀率超过6.25毫米/年的固体或液体。
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hero-dominant view of history
Herodotus
Herod the Great
Heroes in Sui and Tang Dynasties
Heroes in the turbulent days
Heroes of Lüliang
Hero formula
Hero Group of Disaster Relief in No. 760 Research Institute of CSIC
heroic dance
Heroic Sons and Daughters
heroin
Heroism of the Eight Route Army and the New Fourth Army
Heron
Heron, 62—150
heronbill
Heron formula
Heron [Hero] of Alexande
Heronian mean
Heronian tetrahedron
Heronian triangle
Heron of Alexander
Heron of Alexander (约公元1世纪)
Heron of Alexandria
Hero of Alexanderia
Hero of Alexandria
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