The lubrication oil or grease should feature in low wear, self repair and safety guide in malfunction.
润滑油、脂应具备低磨耗、自修复性和故障安全导向性。
The connecting rods between the guide vane servomotor piston rods and guide vane operating ring shall be of steel, with grease lubricated bearings.
导叶操作圆环将被设计接受导叶辅助电动机连接杆和别针在圆环的相反点。
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