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单词 soil horizon
释义
soil horizon
(extremely rare)
n

WORD FAMILY
soil horizon
n a layer in a soil profile
Exp|Hyper
A horizon
the top layer of a soil profile; usually contains humus
B horizon
immediately below the A-horizon; contains deposits of organic matter leached from surface soils
C horizon
beneath the B-horizon and above the bedrock; consisting of weathered rock
horizon
a specific layer or stratum of soil or subsoil in a vertical cross section of land
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