在高空的

The plane flew at an altitude of 20, 000 feet.

这架飞机在两万英尺的高空飞行。

Analogous to a sundog or parhelion, the paraselene is produced by moonlight shining through thin, hexagonal-shaped ice crystals in high cirrus clouds.

类似环日的形成一样，在高空卷云中，月光通过稀薄、具有六边形状的冰晶了幻月。

After three of postdoctoral study at UCSD, he went to Germany in 1978 to work at the Max-Planck-Institute for Aeronomy (now MPI for Solar System Research).

在加担任三年博究员，便到德国的马普高空气究所(今改名为马普太阳系究所)担任究员(1978-1998)。