释义 |
DEFINITIVE EXAMPLES 权威例句〔cosine〕In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse.余弦:直角三角形锐角边的边长与叙边的比美国传统〔sine〕In a right triangle, the ratio of the length of the side opposite an acute angle to the length of the hypotenuse.正弦:在一个直角三角形中,锐角所对边长度与斜边长度之比美国传统 |