The vault itself was protected by a dual lock system: a combination and a key lock, and two feet of reinforced steel.

保险库采用密码加钥匙的双重保护系统，并使用厚达两英尺的强化钢板。

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Intelligent lock system.

智能门锁系统。

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The security of the building is mainly provided by a numerical keypad lock system.

本大厦目前的安全保障主要由一套数字键盘锁系统来提供。

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The three new models employ the Precision Quartz Lock System (PQLS) for jitter-free reproduction of Blu-ray Disc, DVD and CD content.

ENGADGET: Pioneer's 3D Blu-ray compatible, Netflix streaming player triumvirate now shipping

When connected to a Pioneer receiver via HDMI, these Blu-ray Disc players enhances CD playback with the proprietary Precision Quartz Lock System (PQLS).

ENGADGET: Pioneer intros BDP-120 / BDP-320 / Elite BDP-23FD Blu-ray players

As communicated in the July 30 Franchise Weekly Update , a hacker claims to have compromised the Onity brand guestroom lock system with a device containing a circuit board with several wires attached.

FORBES: Lock Firm Onity Starts To Shell Out For Security Fixes To Hotels' Hackable Locks