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碎斑岩
 碎斑岩
tech. crushed porphyry
| 混凝土
 混凝土
environ. concrete
manag. concrete
met. beton
oil cement concrete
sport. concrete

to phrases
碎斑岩
tech. crushed porphyry
碎斑岩
: 3 phrases in 1 subject
Technology3