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词汇 orbit
释义 orbit /'Mbit; 'orbit/ n path followed by a heavenly body, eg a planet, the moon, or a manmade object, eg a spacecraft, round another body: (一天体,如行星、月球或太空船等人造飞行物,绕行另一天体的) 轨道: the earth's ~ round the sun. 地球绕行太阳的机道。 How many satellites have been put in ~ round the earth? 有多少个人造卫星已被射入环绕地球的轨道? ,vi [VP6A, 2A, C] put into, (cause to) move in, ~ (round): 使进入轨迪; (使) 循轨道运行: When was the first man-made satellite ~ed? 第一颗人造卫星是何时射入轨道的? How many spacecraft have orbited the moon? 有多少艘太空船在绕月球轨道运行? ~al /'abitl; brbitl/ adj of an ~: 行星 (卫星) 轨道的: a spacecraft's ~al distance from the earth. 太空船轨道与地球的距离。 ~ velocity, minimal velocity needed to place sth in ~. 轨适速度 (使某物进入轨道所需的最低速度) 。
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