Using the vector method to analyse and solve kinematics of the crank-pilot bar mechanism, thus established the kinematical mathematic model of the crank-pilot bar mechanism.

为了求解曲柄导杆机构的运动学规律，运用矢量法进行了分析，建立了曲柄导杆机构的运动学数学模型。

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The only major difference is that boring jigs are normally fitted with a pilot bushing or bearing to support the outer end of the boring bar during the machining operation.

唯一最重要的差别是镗夹具一般用于控制衬套，或者在机器操作时支撑镗杆的外端。

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The big bar below the grid of buttons disengages the autopilot and gives the pilot full control of the aircraft.

FORBES: What Do All The Controls In An Airplane Cockpit Do?