| 释义 |
DEFINITIVE EXAMPLES 权威例句〔elongation〕The angular distance between two celestial bodies as seen from Earth.距角:从地球上看的两个天体之间的角距离美国传统〔heliometer〕A telescope equipped to measure small angular distances between celestial bodies.量日仪:一种望远镜,用以测量天体之间微小的角距离美国传统The distance between the two bodies in space was measured daily.太空中两个天体之间的距离每天都被测量。剑桥国际 |