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单选题
3000. What is the meaning of ‘Propeller Governor’( )
A
The device that regulates the rpm of the engine/propeller by increasing or decreasing the propeller pitch, through a pitch change mechanism in the propeller hub.
B
An indicating system that displays the output torque available on the propeller shaft.
C
On some turbo propeller powered airplanes, the condition lever is the primary control for starting and stopping the engine. On others, it is the primary control used to set engine and propeller speed.
答案解析
正确答案：A
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