metal-to-metal

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Designating direct contact between two metal items or elements. not-comparable
    — Mr. T. Barnabas Daft, of Dublin, has just filed the specification of a patent for an invention which has for its object the forming of spigot and faucet ends upon cast iron pipes, true enough to make “metal to metal” joints without turning and boring.
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