Have a look at the various object classes in use on your system by using: $ ls -l /usr/lib/objrepos.

使用以下命令来查看一下您系统上正在使用的各种对象类：$ ls -l /usr/lib/objrepos。

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As Bass l, et al. point out, a view is a coherent set of architectural elements or constructs along with the relationships among them, as written by and read by system stakeholders.

正如Bass L等人所指出的，视图是由系统参与者编写和读取的体系结构元素或构造以及它们之间关系的内聚集合。

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L-3 Services' Global Security and Engineering Solutions division will do the work, which entails system design, development and integration.

L - 3服务的全球安全和工程解决方案分部将承担系统设计、开发和综合任务。

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There have been a few anecdotal concerns raised over the last several weeks that LightSquared's proposed LTE network -- which would repurpose L-band spectrum formerly used for satellite -- is too close to the spectrum used by the Global Positioning System, leading to unintentional jamming when the towers overpower the much weaker GPS signals.

ENGADGET: US Air Force raises concerns over LightSquared's LTE network messing with GPS

The system was developed in conjunction with defense contractor L-3 Communications Corp who foresees producing hundreds or thousands of the devices for both government agencies and private companies, but probably not for individual use -- if you know how much 125 pounds of neodymium magnets cost, you'll know why.

ENGADGET: Military-grade "Guard Dog" hard drive degausser

After extensive technical delays and bureaucratic bickering, Siemens (nyse: SI - news - people ) recently installed a computerized system for the L train that allows the line to operate 33 trains per hour, up from 28.

FORBES: Traffic Busters