The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.

该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。

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Tivoli directory Integrator may be configured as a multi-directional feed so data that certain Profile updates made by users can be synchronized back to the source directory server and the hr system.

可以将Tivoli Directory Integrator配置为多方向提供，这样包含用户所提供的某些Profile更新的数据可以与源目录服务器和HR系统保持同步。

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In this system the crankshaft rotating Angle, where the peak combustion pressure occurs, is taken to be a feed back signal, so that the ignition timing of the engine is able to be controlled.

该控制系统利用最高燃烧压力点的曲轴转角作为反馈信号，实现其对发动机点火正时的控制。

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The new locomotives are designed for easier maintenance, will improve energy efficiency by using a regenerative braking system that will feed energy back into the power grid and will enhance mobility for the people, businesses and economy of the entire Northeast region.

ENGADGET: blogger-avatar

Under a new system being rolled out, you feed checks into an ATM and the deposit receipt comes back with photo images of them.

FORBES: Magazine Article