Measure the depth of the dent with a straightedge and feeler gauges

A. 更换滑阀，确保其表面光滑。

B. 如果滑阀表面粗糙，则将其更换。

C. 如果活门表面粗糙，则更换其滑动桶。

A. 臭氧转换器通过臭氧对膜材料进行氧化，从而防止空气分离模块受损。

B. 臭氧转换器防止臭氧对膜材料进行氧化，从而避免空气分离模块受损。

C. 臭氧转换器防止空气分离模块受损，以使得臭氧对膜材料进行氧化。

A. 按照制造商的计划要求使用飞机，结合例行检查和维护实践，从而构成飞机保持适航和安全运行的基础。

B. 按照制造商的要求使用飞机，结合合理的检查和维修实践，形成了确保飞机保持适航和安全运行的基础。

C. 由制造商决定飞机的使用，结合良好的检查和维修实践，以构成飞机保持适航性和安全运行的基础。

A. The dictionary does not include verbs sorted by trades because there are too many.

B. The dictionary excludes majors because there are too many verbs.

C. The dictionary does not include technical verbs because there are too many.

A. One or more separate documents for some types of equipment such as avionics and instrumentation may be required because they change frequently or they have various combinations.

B. Some types of equipment such as avionics and instrumentation are changed regularly or combined in different forms, requiring to have one or more separate documents.

C. Some types of equipment such as avionics and instrumentation are often revised or combined differently to require one or more separate documents.

A. 确保TEDLAR层压板的装饰颜色和图案是正确的。如果新的TEDLAR不能与原件配合，修理结果不会令人满意。

B. 确保TEDLAR装饰层压板的颜色和图案是正确的，如果新的TEDLAR与原品的表面不匹配，修复将不会令人满意。

C. 确保TEDLAR退漆到正确的分层处，如果TEDLAR漆层不能与底漆配合，修复效果将不会令人满意。

A. Each surge tank has a vent scoop and pressure relief valve on its access door.

B. The vent scoop and pressure relief valve each has an access door in the surge tank.

C. The surge tank has a vent scoop and pressure relief valve on each access door.

A. 防止部件移动以便能修理装置。

B. 当你修理附件时要避免部件运动。

C. 当你修理组件时应防止部件移动。

A. 座椅锁定高度装置控制了座椅高度。

B. 座椅长度锁装置控制座椅长度。

C. 座椅高度锁机械装置控制座椅高度。

A. 英语单词、复杂的句子结构以及多个含义和缩写词会对读者造成混淆。

B. 复杂的句子结构、多个含义和术语以及多个英语单词会对读者造成混淆。

C. 复杂的句子结构以及英语单词的多重含义和同义词会对读者造成混淆。