2714. In designing schematic diagrams, it may be necessary to compromise between detail that is necessary to make the diagram self-explanatory, and simplicity that is essential for ease of reading and understanding

A. 确保开关上安装了防护。

B. 确保开关上安装了保险。

C. 确保电门上有了保险。

A. 发动机中空气和燃油混合并燃烧的部分。包括项目,如火焰筒,壳体等。

B. 发动机中空气和燃油混合并在火焰筒和壳体内燃烧。

C. 发动机中空气和燃油混合并燃烧的部分。包括火焰筒,壳体。

A. Fillets/Fairings: The physics fairings between the nacelle and its connecting structure.

B. Fillets/Fairings: The physics fairings between the nacelle and its weld structure.

C. Fillets/Fairings: The aerodynamic fairings between the nacelle and its connecting structure.

A. The copilot＇s indicators control the pilot＇s indicator.

B. The pilot＇s indicators control the copilot＇s indicators.

C. The pilot＇s indicators is instead of the copilot＇s indicator.

A. The power source that are discussed respectively under the appropriate chapter heading shall provide power to at least two systems.

B. When two or more systems are served by a single power source, that power source will be discussed separately under the appropriate chapter heading.

C. The system that is powered by two or more power sources shall be discussed separately under the appropriate chapter heading.

A. When the movement of input rod is ranged from 5 to 10 mm, measure the piston retraction.

B. When the input lever is between 5 and 10 mm, measure the piston extension.

C. When the interval of input shaft changes between 5 and 10 mm, measure the expansion of the piston.

A. 找到中点,然后将测量出的数据除以2

B. 为找到中点,将测量出的间隙除以2

C. 找到中点,用2除以测量出的间隙

A. The operator is responsible for keeping an open communication with the manufacturer so as to inform him of the new situation and get extra help.

B. In order to keep the manufacturer being informed of new situation and the operator receiving solid help in time, there should be an open communication between the operator and the manufacturer.

C. The manufacturer should communicate with the operator in an open and transparent way so that he can keep up with new situation and assist the operator randomly.

A. All flow control devices within the system, such as check valves, fuel pumps, accumulators, and relays should be included.

B. All flue control devices within the system, such as single valves, fuel pumps, storage, and relays should be included.

C. All flow control devices within the system, such as single valves, fuel pumps, accumulators, and relays should be included.

A. Charge the battery.

B. Discharge the battery.

C. Inflate the battery.