Rotate the blocker door and the blocker door links for signs of excessive stiffness or wear through full range of motion.

全行程范围转动阻挡门和阻挡门连杆感觉过度应力或磨损。

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Rotate the blocker door and the blocker door links for signs of excessive stiffness or wear through full range of motion.

全行程范围转动阻挡门和阻挡门连杆感觉过度应力或磨损。

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