The outer circle of the thermal fuse is riveted with a copper sleeve.

热熔断器的外圆上铆接有铜套。

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The results show that oxide inclusion in grain boundary and structure defects from casting and forging process are the main reasons for failure of the copper sleeve.

结果表明：晶界氧化夹杂和铸造、锻造造成的组织缺陷是引起结晶器铜套快速失效的主要原因。

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Taking for example the wear of connecting rod copper sleeve, the paper introduces the application of this method to the prediction of internal combustion engine maintenance and fault detection.

文中以内燃机连杆钢套磨损为例，介绍了其在内燃机维修状态预测和故障珍断上的应用。

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To make the light travel enormous distances, thousands of volts of electricity are sent through the cable's copper sleeve to power repeaters, each the size and roughly the shape of a bluefin tuna.

WSJ: A Dive Into the Digital Deep