There are many kinds of machinery, which can be divided into various categories according to several different aspects, such as: according to the function, it can be divided into power machinery, material handling machinery, crushing machinery, etc.; according to the service industry, it can be divided into agricultural machinery, mining machinery, textile machinery, etc. According to the working principle, it can be divided into thermal machinery, fluid machinery, bionic machinery, etc. At present, many mechanical hydraulic engineers on the hydraulic Yingcai network are quite good.
In addition, the machine has to go through several stages of different work in its research, development, design, manufacture, and operation. According to these different stages, mechanical engineering can be divided into several branch systems that are connected and cooperate with each other, such as mechanical research, mechanical design, mechanical manufacturing, mechanical application and maintenance.
These various branch discipline systems, which are divided into different aspects, cross each other and overlap each other, so that mechanical engineering may be divided into hundreds of branches. For example, power machinery by function, which is divided into thermal machinery, fluid machinery, turbomachinery, reciprocating machinery, steam power machinery, nuclear power plant, internal combustion engine, gas turbine, and central power plant equipment by industry. Industrial power plants, railway locomotives, marine engineering, and automotive engineering all have complex crossover and overlapping relationships. Marine steam turbines are power machinery, thermodynamic machinery, fluid machinery and turbomachinery. They belong to marine power plants, steam power plants, and may also belong to nuclear power plants.
Analysis of this complex relationship, the study of the most reasonable branch system of mechanical engineering, has a certain knowledge, but not much practical value.
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