noun 下载 🔗分享 六分仪，六分仪经纬仪 A navigational device for deriving angular distances between objects so as to determine latitude and longitude. Examples : "The old sailor used his sextant to measure the angle between the sun and the horizon, which helped him figure out the ship's location on the ocean. " 老水手用他的六分仪测量太阳和地平线之间的角度，这帮助他确定了船在海上的位置。 nautical sailing technology device geography 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 六分仪, 六分圆 One sixth of a circle or disc; a sector with an angle of 60°. Examples : "The pizza was cut into six equal slices, so each slice represented a sextant of the whole. " 这块披萨被切成了相等的六块，所以每一块都代表了整个披萨的六分之一（六分圆）。 math nautical astronomy device 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 前牙组，前牙区 One of six groups of adjacent teeth, excluding the wisdom teeth. The front sextants go from canine to canine, and there are sextants on the right and left of these. See w:Periodontal examination. Examples : "The dentist examined the front sextant of my teeth, checking for signs of gum disease between my canine teeth. " 牙医检查了我前牙组的牙齿，查看犬齿之间是否有牙龈疾病的迹象。 anatomy part body medicine 与AI对话词汇游戏阅读练习
