【电学】金属蛋白质，金属硫因

silent bloc type rubber-metal connection

metal box【包装】;metal carton【包装】

TAPPING metal or other material [= screw-threading]

metal-clad, medium-voltage switchboard section

road metal paving (crushed-stone pavement)

fused masses (fused mass, molten metal)

metal spinning lathe

continuous casting metal continuous casting guide