N
any of several typically crested large marine diving ducks of the genus Mergus, having a long slender hooked bill with serrated edges 秋沙鸭 (Also called sawbill)
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see also
goosander
Seventeen producing fields included in the Eni deal include the Andrew, Magnus, Kinnoull, ETAP, Merganser and the Flotta Catchment Area, including the Claymore field.