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r2: risk of explosion by shock, friction, fire or other sources of ignition
r2: 遇火或点火, 震动, 磨擦时会发生爆炸please take the official translations! you find them here: http: // europa. eu. int/ eur- lex/ lex/ lexuriserv/ lexuriserv. do? uri=celex: 32001l0059: en: html