发动机机油泵传动齿轮
engine oil pump drive gear
附件传动齿轮固定螺母
accessory drive gear retaining nut
燃油泵传动齿轮
fuel pump transmission gear
燃油泵中间传动齿轮
fuel pump intermediate transmission gear
燃油输油泵传动齿轮
fuel transfer pump drive gear
润滑油泵传动齿轮
lubricating oil pump driving gear
动力输出传动齿轮
power take-off drive gear