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foundation bed
bridg.constr. 基底
eng.geol. 基底土层〔岩层〕
hydroel.st. 基础垫层
met. 基床
oil 基底土层; 基底岩层
tech. 基础底面; 基座; 基底 (层); 基床基础垫层
foundation-bed
el. 基础底面; 基床
foundation bed
: 13 phrases in 5 subjects
Architecture1
Bridge construction2
Engineering geology1
Metallurgy1
Technology8