urban smog/amn

11.   An on-board telescope collected reflected light which allowed scientists to calculate the altitude and density of desert dust, urban smog and other particles in the atmosphere.

a. + smog >>共 88 个
thick 12.04%
choking 7.85%
urban 5.76%
heavy 5.24%
worst 3.14%
dense 2.62%
high 2.09%
dangerous 2.09%
killer 1.57%
asthma-causing 1.57%
urban + n. >>共 1273 个
area 15.82%
center 3.91%
life 2.37%
development 2.32%
school 1.57%
planner 1.45%
neighborhood 1.32%
legend 1.29%
dweller 1.03%
growth 1.00%
smog 0.18%
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