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中砾石 zhōng lìshí
gen. cobstone
bridg.constr. cobble boulder; cobble st one; cobble gravel; cobble; medium gravel
dril. pebble
hydroel.st. cobble stone
oil cobble-stone
tech. cobblestone
中砾石: 11 phrases in 3 subjects
Geophysics2
Oil / petroleum6
Technology3