520.There are 24 wide-chord,titanium fan blades.

A. 手册子章节里的材料可以抄袭本规范本节各小段中的材料顺序,也可以根据特定类型或型号的飞机进行排布。

B. 手册各小段中的材料可以遵循本规范本节各小段中的材料顺序,也可以安排特定类型或型号的飞机进行匹配。

C. 手册各小段中的材料可以遵循本规范本节各小段中的材料顺序,也可以根据特定类型或型号的飞机进行排布。

D. C.手册各小段中的材料可以遵循本规范本节各小段中的材料顺序,也可以根据特定类型或型号的飞机进行排布。

A. The damper prevents abnormal movement of the control.

B. The control is protected from unusual movements by the damper.

C. The damper prevents sudden movement of the control.

A. 把 O 形封圈浸泡在液压油里面。

B. 防止液压油腐蚀 O 形封圈。

C. 用液压油润滑 O 形封圈。

A. 当你拆下罩环时,小心不要损坏法兰组件。

B. 当你拆下冠环扇形件时,小心不要造成法兰盘损坏。

C. 拆下法兰盘时,小心不要造成冠环扇形件损坏。

A. 松开断路测试开关。

B. 复位短路测试开关。

C. 松开短路测试开关。

A. The testing machine will run the tests in manual mode.

B. The test set will automatically run the tests.

C. The test apparatus will give the test parameter automatically.

A. The revision dates need to be displayed at each revision location.

B. The revision date needs to be displayed in an obvious place.

C. The revision date should be displayed on every revision page.

A. 找到新的故障件。

B. 发现新的排故方法。

C. 找到新的排故程序。

A. The equipment list shall include all needed or auxiliary equipment installed in the particular airplane when delivered.

B. All needed or optional equipment installed in the particular airplane when transported shall be contained in the equipment list.

C. The equipment list shall contain all required or optional equipment installed in the particular airplane when delivered.

A. Exterior Placards and Markings are required for ground servicing instructions,inspections,cautions,warnings.

B. Exterior Labels and Markings are required for ground servicing instructions,inspections,cautions,warnings.

C. Exterior Placards and Markings are required for ground servicing instructions,inspections,warnings,cautions.