有些环境因素在制造商或运营商的控制范围内，例如：电池舱的位置。

A.There are some environmental reasons of the manufacturers or operators such as the location of battery compartments.

B.Some environmental factors are within the control of the manufacturer or the operator such as the location of battery compartments.

C.It is the manufacturer or the operator＇s environmental factors, such as the location of the battery compartments.

正确答案：B

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.

This index helps you find the applicable STE rules related to different specific subjects.