Упражнение 37. Переведите следующие предложения, обращая внимание на составные союзы и союзные слова

1. The cost of the control system, both in the equipment needed and in staff, is obviously great. 2. The broader the knowledge available the sooner are difficulties explained. 3. There are important differences between the two materials, both in their technology and in their physical properties. 4. It is neither necessary nor desirable to investigate a single factor at a time in order to economically conduct experiments. 5. Unless explicitly stated otherwise, we shall use the term to refer to a physical entity on which a measurement is made. 6. The solution is approximate unless the problem is so simple that a convenient exact formula is already available. 7. Accordingly, caution should be exercised when invoking the ideal gas model lest significant error is introduced.