Circulator Fans feature a pull chain switch.

环形风扇具有拉链开关。

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Because the calculation method is accomplished by MATLAB Tool, it is in favor of realizing design and simulation of high-frequency chain switch power supply circuit.

由于该计算方法是在MATLAB环境下进行，有利于进一步实现高频链开关电源电路的设计和仿真。

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Switch the filter chain and you have yourself a different Process.

改变该过滤器链你就得到了自己一个不同的流程。

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It just got number two fast-food chain Subway to switch from Pepsi.

FORBES: The Red Empire

IRobot cut off one big chain that refused to switch to more prominent, specialized displays.

FORBES: Invasion Of The Machines: iRobot Hunts Bombs, Cleans Floors, Now Wants To Heal You

Even the simplest electric appliance, the desk lamp, generally has at least a power switch or chain.

ENGADGET: Switched On: Jane, Stop This Crazy Thing