单选题Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by （）.Aregulating the oil flow with the six-way valveBmoving the automatic differential valveCmoving the receiving tele-motor which regulates the two-way valveDvarying the angle of a tilting box or eccentricity of a floating ring
单选题
Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by （）.
A
regulating the oil flow with the six-way valve
B
moving the automatic differential valve
C
moving the receiving tele-motor which regulates the two-way valve
D
varying the angle of a tilting box or eccentricity of a floating ring
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