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columnar structure
earth.sc. 柱状结构
eng.geol. 柱狀構造; 柱狀結構 combe 三面皆山的深谷; 狹谷
hydroel.st. 柱状构造
met. 柱状组织; 柱状晶结构
soil. 拄状结构
space 柱状组织 (金相学的)
columnar soil structure
el. 柱状结构
columnar structure: 3 phrases in 3 subjects
Desert science1
Metallurgy1
Technology1