Cotangent
n. 余切\\n[电] 余切
📖 牛津释义
cotangent
n
(abbr 缩写 cot) (mathematics 数) tangent of the complement of a given angle 余切.
🗣️ 情景例句
Should children be allowed to watch violent movies?
小孩可以看暴力片吗？
What do you do for relaxation?
你做什么消遣？
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。