According to characteristic of regional exploring satellite system, an intermittent regional covering orbit design scheme is proposed using circular sun synchronization orbit.

根据区域性探测卫星系统的特点，提出了利用太阳同步轨道间歇性区域性覆盖特定区域的轨道设计方案。

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Although there was no river view from our bedroom, a private sun terrace (accessed by a small circular staircase) allowed us to watch the rice barges drift down the Chao Phraya.

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The buildings, with a circular shape and a flat roof, were made of mud, sun-dried mudbricks and stone.

UNESCO: Choirokoitia