What is a technical conflict? What is physical conflict?

Technical conflict refers to the mutual restriction between two parameters in the technical system; It is a contradiction caused by the deterioration of another parameter when improving one parameter of technical system.

Physical conflict is that a parameter in the technical system cannot meet the requirements of mutual exclusion in the system. For example, a parameter of the system is required to exist and not exist, or both high and low, or both large and small, and so on. Compared with technical contradiction, physical contradiction is more acute and needs to be solved in innovation.

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Physical contradiction and technical contradiction are interrelated. For example, in order to improve the efficiency of Y subsystem, Y subsystem needs to be heated; However, heating will lead to the degradation of its adjacent subsystem X, which is a pair of technical contradictions.

Similarly, such a problem can be described by physical contradiction, that is, the temperature should be high or low. High temperature can improve the efficiency of Y, but worsen the working conditions of X; Low temperature can't improve the efficiency of Y, but it won't worsen the working condition of X, so technical contradiction and physical contradiction can be transformed into each other.

Baidu encyclopedia-physical contradiction