手工工具基本分成四大类：敲击工具、夹持工具、切割工具、扭转工具。

To facilitate troubleshooting, repair of circuits, and replacement of components, an identification and coding system should be used.

The aircraft may be maintained in accordance with the latest information issued by the manufacturer.

The abnormalities to be included in this section shall be determined by the handbook producer.

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.