emergency shutdown device
81petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …
82ROKS Cheonan sinking — Four photos show damage to the ROKS Cheonan clockwise from upper left: (1) stack damage; (2) front portion (port side) showing the break point; (3) water pressure marks on the hull bottom; (4) a large fragment is lifted from the sea. Date 26… …
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