Auto Throttle includes engaging, sensing, computing, amplifying, controlling, actuating and warning devices such as amplifiers, computers, servos, limit switches, clutches, gear boxes, warning lights, etc.

A. The horizontal bar goes out of view.

B. The vertical bar goes out of view.

C. The horizontal bar disappears suddenly.

A. Vigorously scrub the surface with a rough, dry cloth.

B. Polish the surface with a soft, damp cloth.

C. Rub the surface quickly with a soft, dry cloth.

A. Do not put too much force on the brush when cleaning the carpet which can be easily damaged.

B. To prevent damage to the carpet when you clean it, do not use too much force on the brush.

C. Using too much force on the brush when cleaning the carpet will cause damage to it.

A. During engine run, the number 1 engine oil pressure watch swings.

B. During engine run, the number 1 engine oil pressure gauge fluctuates.

C. During engine run, the number 1 engine oil pressure indication moves.

A. Set the width of the control rod as necessary.

B. Set the length of the control rod as necessary.

C. Set the height of the control rod as necessary.

A. If you find cracks, refer to the structural repair manual for damage classification and corrective action.

B. If you find the dents, according to the structural maintenance manual to get the damage group and take the correct action.

C. In the event of finding gaps, read the structural maintenance manual to sort the loss and correct the action.

A. 为增压飞机和涡轮增压或涡轮螺旋桨动力的飞机，最大高度限制应该予以说明。

B. 对于增压的飞机以及涡轮增压或涡桨为动力的飞机，应规定最高飞行高度限制。

C. 为飞机增压和发动机涡轮增压或螺旋桨动力设置，应说明最高限制。

A. “修理/改装”用于描述修理或改装说明，也可指向其他文件中的标准修理或其他地方定义的特殊修理或改装，如在服务包、服务通告等中。

B. “修理/改装”用于描述修理或改装指令，也可指向其他文件中的标准修理或其他文件（如服务包或服务通告等）中界定的特殊修理或改装。

C. “修理/改装”用于描述维修或改装说明，可能指另一份文件中的标准维修或其他地方定义的特殊维修或改装，如维修包、维修公告等。

A. 技术动词是指示性的词汇，提供有关特定技术和操作的信息。

B. 技术动词用于描述指示和信息，以适用于特定的技术和操作环境。

C. 技术动词在特定的技术和操作语境中给出指示和信息。

A. The Index Numbering System is described in the following paragraph.

B. The Index Numbering System is introduced in the next paragraph.

C. The Index Numbering System is compared in the later paragraph.