2784.Dissimilar metal corrosion refers to the corrosion that occurs when two or more different metals are in contact with each other in the presence of an electrolyte .In this situation,an electrochemical reaction is set up between the metals,which causes one of the metals to corrode more quickly than it would have done on its own.

A. Warnings,cautions and notes may be used to highlight or emphasize important points.

B. Highlight or underline the key points with alerts,attentions and comments.

C. Alerts,cautions and comments can be used to protrude or underline the key points.

A. The mechanic removed the cable roller and examined the surrounded area in detail.No other defects were found.

B. The mechanic removes the cable rotor and examines the adjacent area in detail.No other defects are noted.

C. The mechanic removed pulley and inspected the surrounding area in detail with no other defects found.

A. 这将使用户可以通过检查一份清单来识别受影响的飞机,而不必检查每个单独的持续适航计划以确定适用性。

B. 这将允许用户通过检查一份清单来找出受影响的飞机,或者也可以检查每一个持续适航计划的适用性。

C. 这将使用户可以通过检查一份清单来判断被影响飞机的有效性,而无需检查每个独特的持续适航计划。

D. B.这将允许用户通过检查一份清单来找出受影响的飞机,或者也可以检查每一个持续适航计划的适用性。

E. C.这将使用户可以通过检查一份清单来判断被影响飞机的有效性,而无需检查每个独特的

F. C.这将使用户可以通过检查一份清单来判断被影响飞机的有效性,而无需检查每个独特的持续适航计划。

A. The specification is designed to cut off the cost to general aviation airplane owners and operators and maintenance personnel.

B. The target of the specification is to reduce the cost of general aviation airplane owners and operators and maintenance personnel.

C. The objective of the specification is to minimize the cost to general aviation airplane owners and operators and maintenance personnel.

A. 速度-高度纠错系统通过修正实际速度尽可能保持飞机安全飞行高度。

B. 通过修正实际速度尽可能保持飞机安全飞行高度的任务由速度-高度纠错系统完成。

C. 速度-姿态修正系统通过修正速度的影响,自动保持安全的飞行姿态。

A. 向反方向移动杆。

B. 逆时针移动杆。

C. 移动杆至对应方向。

A. The specification gives the symbols for relays,diodes,and other parts of the system.

B. The specification gives the requirement for markings on relay,triode and other parts of the system.

C. The specification excludes symbols for relays,diodes,and other system parts.

A. 张力是正确的。

B. 校正张力。

C. 正确的拉力。

A. 给轮胎放气。

B. 给轮胎充气。

C. 给机轮充气。

A. 确保压力不低于 30 磅每平方英寸。

B. 确保压力小于 30 磅每平方英寸。

C. 确保压力不高于 30 磅每平方英寸。