钢材大致可分为四类：炭素钢，合金钢，高强度低合金钢和不锈钢。
There are four broad classifications of steel: carbon steels, alloy steels, high-strength low-alloy steels and stainless steels.
重型支援桥作为军用桥梁族中的装配式钢桁架桥类，由于其单个构件重量轻、互换性好，设计合理、拼装简便、运输快速而在新一代军用桥梁中脱颖而出。
As a member in the assembly steel truss style of military Bridges, heavy support bridge stands out in the new generation Bridges for its rational design, simply fabrication and quick transportation.
重点介绍了按金相组织分类的贝氏体、马氏体类合金结构钢和铁素体、马氏体、奥氏体类不锈钢合金焊丝的生产工艺。
It mainly introduces the production processes of alloy structural steel welding wires of bainite and martensite and stainless steel welding wires of ferrite, martensite and austenite.
应用推荐