artificial satellite Any man-made object placed in a near-periodic orbit in which it moves mainly under the gravitational influence of one celestial body, such as the earth, sun, another planet, or a planet's moon

环境

satélites artificiales

artificial satellite

: 2 短语, 2 学科

电子产品	1
自然科学	1

增加 | 报告错误 | 获取短网址