观测卫星 guān cè wèi xīng

DEFINITIONS

  1. observation satellite

CHARACTERS

观 guān
HSK 4
see, observe, view; appearance
测 cè
HSK 5
measure, estimate, conjecture
卫 wèi
HSK 4
guard, protect, defend
星 xīng
HSK 1
a star, planet; any point of light