Any worn or damaged parts must be replaced immediately.

任何磨损或损坏的零件，必须立即更换。

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Replace timely worn or damaged electric brush. Remove timely dusts, small pieces and etc.

应及时更换已磨损到位的电刷，及时清除机器灰尘、杂物等。

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Rig tong dies must be kept clean and inspected regularly and must be replaced if worn or damaged.

大钳牙必须保持干净，并经常检查。如果有磨损或损伤，必须更换。

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Loeb's group has developed a device that mimics human skin, but puts the actual sensors away from places where skin is likely to be damaged or worn out.

CNN: Fingerprint study offers inspiration for robotics research