The radar, called the Mini-SAR, sends pulses of left-polarized radio waves out to measure the surface roughness of the moon.
那个叫做Mini-SAR的雷达,通过向月表发射左旋极化电磁脉冲来测定月球的表面粗糙度。
Other new entries joining the list on Tuesday include the Oxford English Dictionary, Robin Hood, the Mini and the long-running BBC Radio 4 soap opera "The Archers".
本周二成为国宝新成员的还有牛津英语字典、罗宾汉、Mini汽车以及在BBC 广播四台播映了很久的肥皂剧《The Archers》。
All the hotel's bedrooms have a mini-bar, telephone and radio.
所有的旅馆卧室都有一个小酒吧、电话和收音机。
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