求翻译：材料力学 ，结构力学，机械原理，机械设计，机械制造技术基础，液压传动与控制，钢结构，工程机械液压系统，工程机械底盘设计，内燃机原理，工程机械设计，工程起重机，电梯结构与工作原理，测试技术，电机与拖动，机电一体化技术，电梯控制技术等。是什么意思？

Mechanics of materials, structural mechanics, mechanical principles, mechanical design, mechanical manufacturing technology based on the hydraulic transmission and control, steel, construction machinery hydraulic system, construction equipment chassis design, engine theory, construction machinery de

mechanics of materials, structural mechanics, and mechanical principles, mechanical design, machinery manufacturing technology based, hydraulic transmission and control, and steel construction, engineering machinery hydraulic system chassis design, internal combustion engine, engineering machinery,

Materials mechanics, structure mechanics, mechanism, machine design, machine manufacture technology base, hydraulic transmission and control, steel structure, project mechanical hydraulic system, project mechanical chassis design, internal combustion engine principle, project machine design, project

Mechanics of materials, structural mechanics, mechanics, mechanical design, Fundamentals of machinery manufacturing technology, hydraulic drives and controls, steel structures, hydraulic systems of construction machinery, engineering machinery chassis design, principles of internal combustion engine

Mechanics of materials, structural mechanics, mechanics, mechanical design, Fundamentals of machinery manufacturing technology, hydraulic drives and controls, steel structures, hydraulic systems of construction machinery, engineering machinery chassis design, principles of internal combustion engine