单词 | case-hardened steel |
释义 | case-hardened steel (once / 3939771 pages) n WORD FAMILY case-hardened steel USAGE EXAMPLESThe pin itself should be of case-hardened steel. Mathot, R. E., Gas-Engines and Producer-Gas Plants...(2011) n steel with a surface that is much harder than the interior metal Hyper steel an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range |
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