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明挖 míngwā
bridg.constr.	open cutting
hydroel.st.	open excavation; open cut; through cut; open-cut
tech.	cut-and-cover; open dredging
明挖露天开挖岩石和矿物,或通过丘陵地带开挖一条两侧留有边坡的沟槽〈如公路、铁路路堑、明渠、河道〉以及建筑物基坑的方法,叫做明挖法。通常采用的爆破方法有炮孔法、深孔法和硐室爆破法 míngwā
expl.	through-cut

明 挖 : 59 phrases in 9 subjects

Bridge construction	7
Construction	1
Desert science	1
Engineering geology	8
General	1
Hydroelectric power stations	7
Metallurgy	1
Rail transport	4
Technology	29