... 龙门式吊运车 straddle truck 龙门板 sight rail 龙门汽锤 arch-type steam hammer ...
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The Rail Accident Investigation Branch (RAIB) highlighted sight as a possible cause in its report on last September's accident at Halkirk.
BBC: Eyesight 'a cause' in fatal crash at level crossing
Network Rail has been criticised after a teenager lost the sight in his right eye when a railway detonator exploded.
BBC: Essex
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