54、Identify a revision to an illustration with a black vertical line in the left margin opposite the revised portion or use a pointing hand.

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

5. Apply two layers of protective compound to prevent hydraulic fluid damage to the sealant.

4.很难确定腐蚀的影响, 但是如果收到持续适航大纲检查报告, 检查时间将根据任何严重的问题进行调整 ,

3, You can write descriptive text in the active voice.

2.如有必要,加一个垫圈。

1, You can do the test in two different ways: either with the Central Maintenance Computer, System via the MCDu, like you have probably learned already, or with a test switch on the VOR receiver in the avionics compartment.

1138. In some cases, wires are color coded and these should be indicated on the wiring diagram.

1137.文本应尽可能简明扼要。

1136. Database synchronization is in progress.

1135.参考下表以获得适用的扭矩值