Provide pin to avoid sealing at midway and protect seal part of packer, enhanced reliability of plugging string.

设计有防中途坐封的销钉，保护封隔器的密封件，提高了封堵管柱的可靠性。

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If you lose possession of an Android phone, your PIN or pattern unlock might not be enough to protect the sensitive data stored on it.

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Make sure you protect access to your device with a password or PIN to keep intruders out if the device is lost or stolen.

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The pin was a symbolic gesture, another step toward being given real authority to protect the sea, but the praise seemed to make him uncomfortable.

NEWYORKER: Neptune��s Navy