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natural stone
bridg.constr. 天然石料
railw. 天然石材
tech. 琢石; 天然石 (材)
natural stone A gemstone that occurs in nature, as distinguished from a man-made substitute
environ. 天然石 (自然出现的宝石，区别于人造替代物。)
natural stone
: 71 phrases in 6 subjects
Architecture6
Engineering geology1
Explosives and Explosive Ordnance Disposal1
Mechanics1
Technology61
Textile industry1

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