| 释义 |
nautical milen.（名词）abbr. nm, n.m., NM【缩写】- A unit of length used in sea and air navigation, based on the length of one minute of arc of a great circle, especially an international and U.S. unit equal to 1,852 meters (about 6,076 feet). Also called sea mile 海里：在航海和航空上应用的长度单位，按地球大圆一弧分长计，尤指国际和美国单位，相等于1,852米（大约6,076英尺） 也作 sea mile
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