Combined power and propulsion system will feature lower fuel consumption, increased efficiency and environmental benefits. Rolls-Royce has signed a contract to deliver engines and propulsion systems for what it said are the world's first liquefied natural gas (LNG)-powered tugs. The two vessels have been ordered by Norwegian company Bukser og Berging AS and will enter service in late 2013 for Norwegian energy company Statoil, and Gassco, the operator of the gas transportation network off the Norwegian coast.
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机译：动力与推进系统相结合，将具有更低的燃油消耗，更高的效率和环境效益。罗尔斯·罗伊斯公司（Rolls-Royce）已签署一份合同，为其提供的发动机和推进系统提供动力，这是世界上第一个以液化天然气（LNG）为动力的拖船。这两艘船是由挪威公司Bukser og Berging AS订购的，并将于2013年底为挪威能源公司Statoil和挪威海岸外天然气运输网络的运营商Gassco投入服务。
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