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N a spacecraft or satellite designed to orbit a planet or other body without landing on it (在行星的轨道上飞行而不在其上面着陆的)航天器或卫星 → compare lander
The launch will put India into an Asian space race, which last year saw Japan and China launch lunar orbiters.
继日本和中国去年先后发射了月球探测器后，印度也将借此加入到亚洲的太空竞赛中来。
The rocks scattered around the basin of the Endeavour crater have been scanned by cameras aboard orbiters hurtling overhead.
环绕头顶的卫星已用摄像头扫描过该弹坑所在盆地中分布的岩石。
Operations of Chang'e-2 are in the second stage of the Chinese moon-landing project, which focuses on collecting information for future orbiters to land on the moon.
嫦娥二号的运行属于中国探月工程二期，它主要为未来的卫星登月收集资料。
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