Hipparchus
/hi'pa:kəs/
中文翻译
n. 希帕克斯（古希腊天文学家）
英文解释
n. Greek astronomer and mathematician who discovered the precession of the equinoxes and made the first known star chart and is said to have invented trigonometry (second century BC)
常见例句
1
An optical instrument, invented by Hipparchus, for taking altitudes, leveling, etc.