Fix the grammar mistakes: However it is hard to say that whether we can solve the engineering problem by simply improving the psychological problems, since for many engineering incidences the technical problems had occupied an overwhelming part.
The problem of the engineering problem is not the technical problem, but the psychological problem.
The problem of the engineering problem is not the technical problem, but the psychological problem.
The problem of the engineering problem is not the technical problem, but the psychological problem.
The problem of the engineering problem is not the technical problem, but the psychological problem.
The problem of the engineering problem is not the technical problem, but the psychological problem.
The problem of the engineering problem is not the technical
The problem of the technical problems is the main problem of the engineering problem.
The problem of the technical problems is the main problem of the engineering problem.
The technical problems are the main problem of the engineering problem.
The technical problems are the main problem of the engineering problem.
The technical problems are the main problem of the engineering problem.
The technical problems are the main problem of the engineering problem.
The technical problems are the main problem of the engineering problem.
The technical problems