cementation steel造句
造句與例句
手機(jī)版
- The first examples of cementation steel is wootz steel from India ( Craddock 1995 : p276 ), where the crucibles were filled with the good quality wrought iron and carbon in the form of organics such as leaves, wood etc . However, no charcoal was used within the crucible.
- It's difficult to see cementation steel in a sentence. 用cementation steel造句挺難的
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