题目

英语翻译
Steel is an alloy of iron and carbon with other elements added to produce specific properties.the various types of steel can be grouped under two major headings.
carbon steel .a steel in which the main alloying element is carbon .carbon steels are further divided into three groups .
low carbon steel .this steel has a carbon content of less than 0.30 percent .it is the most common type and is often called mild steel .it is relatively inexpensive .ductile,soft ,and is easily machined and forged.mild steel cannot be heat-treated .low carbon steel is a general purpose steel.
Medium carbon steel.this steel has a carbon content between 0.3 percent and 0.8percent .harder and stronger than mild steel ,it can be hardened by heat treating.medium carbon steel is most commonly used for forgings,castings ,and macheined parts for automobiles ,agricultural equipment ,machines ,and aircraft .
High carbon steel .this type of steel is easlily heat-treated to produce a strong ,to

提问时间：2021-04-01

答案

钢是铁和其他元素碳合金添加到具体的详细性能,生产各类钢可根据两大类分组.碳钢.一钢中的主要合金元素是碳.碳钢进一步分为三组.低碳钢.这个钢只有不到百分之0.30的碳含量.这是最常见的类型,通常被称为低碳钢.也相对...