The scheme accomplishes range tracking by adopting three range gate tracking to make middle gate always centered at echo pulse center through feedback circuit and deviation calculation circuit.

该方案采用三波门跟踪，通过偏差计算电路和反馈控制电路使中间波门中心始终对准目标回波脉冲中心，完成距离跟踪。

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Watson Research Center, built the world's first logic circuit out of a single long carbon molecule called a nanotube.

该公司托马斯·沃森研究中心的物理学家造出全世界第一个以纳米管(一个长长的碳分子)为原料的逻辑电路。

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This paper deals mainly with the hardware and software design of the protective circuit for lithium-ion batteries (7 in series), whose control center is PIC16C74.

详细介绍了采用PIC16C74单片机为控制核心的锂离子电池（7串电池组）保护电路的硬件、软件设计。

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The Bezos Center for Neural Circuit Dynamics will be part of the Princeton Neuroscience Institute, a new division that was only officially launched in 2006.

FORBES: Bezos Donates $15 Million For Princeton Neuroscience Center

At HP's bright, pristine data center in Palo Alto, Calif. customers see 324 computer servers, each shrunk to a circuit board and nested in a stack with 30 to 40 others in 6-foot-6-inch-high cabinets.

FORBES: Magazine Article

It turned out the data source was in the same data center and the firm could link to it by LAN with 24 to 48 hours rather than installing a circuit that might take 4 to 8 weeks.

FORBES: New Equinix Marketplace Can Link Financial Firms and Digital News