The dictionary also gives a selection of unapproved words, with examples that show how to use alternative words.

The mix chamber is a cylindrical duct assembly with an outer shell and inner sleeve.

The passenger cabin exhaust air goes through floor grilles to the recirculation system or overboard.

Outlets along the side walls and the center of the ceiling divide the air for symmetrical supply.

Correct punctuation is important because it shows how the different parts of the text are related and prevents ambiguity.

If the danger is clearly specified, the person who does the task will understand the risk and be more careful.

If possible, always tell your reader what can occur if the safety instruction is not obeyed.

Complex sentence structure and the large number of meanings and synonyms that many English words have can cause confusion.

These FAA advisory circulars provide specific information regarding continued airworthiness requirements for the manufacturer and owner/operator.

The function and operation of each unit in the system should be described as well as the location of the units.

The index should show the chapter and subchapter in which a circuit of the system appears.