Sleeve locking mechanism is engaged by rotating sleeve after connection. It prevents accidental disconnection when , the coupling is dragged along the ground.

套筒锁紧机构通过连接后旋转套筒而啮合。在使用期间沿地面拖动接头时，防止意外断开。

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The connection between the sleeve (2) and the connecting piece (10) can only be separated by the destruction of at least one of said two parts.

套管(2)和连接管(10)之间的连接只有通过破坏所述两个部件中的至少一个才能够分离。

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The good connection between the steel sleeve and the anchor ring is ensured by the fastening of the high strength screw nut.

通过高强螺母的紧固保证钢套管与锚环之间良好连接。

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The FreedomPop iPod touch 4G Sleeve snaps onto any fourth generation iPod touch, enabling a seamless connection to FreedomPop's free high-speed 4G network and allowing the iPod to function like an iPhone.

ENGADGET: FreedomPop ships its 4G-enabling iPod touch case, lets us nearly go phoneless for $99 (update: plan clarifications)