Определите основную идею текста
The best engineering design is one which eliminates the core contradiction causing the problem.
An engineer is a skilled specialist in a branch of engineering.
The engineers use prototypes, models, simulations, and various tests to predict the performance of their designs prior to full scale production.
The crucial task of the engineer is the creative application of scientific principals in order to design or develop structures, machines, or manufacturing processes with a successful result.