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单选题
190 系统中控制微数能桨桨距的部分。包括调速器,同步器,电门,钢索,杆等。不包括随螺旋桨组件旋转的任何零件。
A
That portion of the system which controls the pitch of the propeller blades. Includes items such as governor,synchronizers,switches,cables,levers,etc.Does not include any parts which rotate with the propeller assembly.
B
The part of a system that controls the pitch ofa propeller,Includes accelerators,synchronizers, switches,cables,rods,letc.Excludes anyparts moving with the propeller assembly.
C
The part of a system that controls the Angle ofa propeller blade.Includes governor,synchronizer, switch, cable, rod, etci Excludes any parts moving with the propeller assembly.
答案解析
正确答案：A
