改版、增补和删除的内容，应在页面外划出一条垂直黑线，与被更改的部分相对应。

If certificated in more than one category, the weights, with any restrictions, shall be given for each category.

Remove the primer finish around the mating surface area of the adapter plate .

Some abbreviations of parts of speech are changed to agree with standard abbreviations.

Isolate the section that is causing the trouble.

Where possible and practical, language and writing style obey the rules and the dictionary of STE.

The ventilation system uses differential pressure to pull air out of the airplane.

Shutoff the airflow in the air conditioning ducts to be inspected.

The surge tank drain check valve also prevents fuel flow from main tank 1 and main tank 2 to the surge tank.

The writing rules cover aspects of grammar and style. The dictionary gives the general words that a writer can use.

The symbol means all or most of the rules in that section.