south latitude

"These buried ice sheets that extend from the poles all the way down to 45 degrees or so (north and south latitude) don't quite cover half of the planet, but (they) come close," he said.

“这些埋藏着的冰原从两极一直延伸到(北纬和南纬)45度左右，没能完全覆盖半个火星，但(覆盖面)接近这一水平。”Shane Byrne表示。

Rosat's operating orbit meant it could have come down anywhere between 53 degrees north and south latitude - a zone that encompasses the UK in the north and the tip of south America in the south.

伦琴卫星的工作轨道意味着它可能在南纬和北纬53度之间的任何地方坠落，这是一个在北边包括英国、而南边包括南美洲南部一角的一个地带。

The sun must be very high in the sky and it can not be seen at a latitude above 55degrees north (which includes Scotland and much of Canada) or below 55 degrees south.

太阳必须高挂在高于北纬55度的地区，包括苏格兰和加拿大的大部分以及低于南纬55度的地区。