Polish the window pane with a soft cloth.

A. In any process, the velocity is not large.

B. Do not increase this speed in any operation.

C. In any operation, the speed can not be greater than this value.

A. Give an explanation to show the specified risk or possible result.

B. Give an explanation to show the special risk or possible result.

C. Give an explanation to show the specific risk or possible result.

A. Distances shown are based on weak wind.

B. Distances shown are developed with no wind.

C. Distances shown are on the basis of gentle wind.

A. 操作后绞盘的人，必须锁定调节器。

B. 操作后绞盘的人，必须锁定固定装置。

C. 操作后法兰盘的人，必须锁定固定装置。

A. 这些单位及组件给予不相干的系统警告，声音或者视觉的。

B. 这些组件及部件为不相关系统的状态提供听觉或视觉警告。

C. 这些单位及组件给各个系统的不相关的工作条件提供声音或视觉警告。

A. Prior to and aft use the tool / equipment, the user shall make a visual check or operational test to confirm the utility.

B. Before or after using the tool / equipment, the user shall make a visual check or functional test to confirm the serviceability.

C. Before or aft of using the tool / equipment, the user shall make a spot check or functional test to inform the usability.

A. Put a plug on the open end of each pipe.

B. On the opening of each pipe, put a cover.

C. Put a cover on the loose end of the pipe.

A. 飞机已按照制造商要求或同等标准进行检查。

B. 飞机已按照运营人要求或同等标准进行维护。

C. 飞机已按照制造商建议或同等标准进行维护。

A. 涡轮能够从排气中提取能量并连接到曲轴。

B. 涡轮机释放出废气能量，并连接到曲轴。

C. 涡轮机从排出的气体中提取能量，并用它驱动曲轴。

A. As the depressurization of the alternate system, the hydraulic system A must be released to open the rudder hydraulic system selector valve and permit hydraulic fluid to flow to the rudder actuator below.

B. In order to depressurize standby system, the hydraulic system A must be depressurized to open the rudder hydraulic system selector valve and let hydraulic fluid flow to the lower rudder actuator.

C. Due to the depressurization of the alternate system, the hydraulic system A must be released to open the rudder hydraulic system selector valve and permit hydraulic fluid to flow to the bottom rudder actuator.