The second reason is that it is difficult to make these circuit voltage controllable over a large frequency range.

第二个理由是很难做到将这些电路的电压控制在一个很大的频率范围内。

youdao

And it has the features of wide range regulation of voltage, simple circuit, output stability, reliability, excellent interactive interface, being widely used and so on.

具有电压调节范围宽，电路简单，输出稳定，可靠性强，人机交互接口优良，应用范围广泛等特点。

youdao

The article presents L6598 inner structure, its lead functions, unit circuit operation philosophy and its circuit in the wide range AC/DC adapter.

文中介绍了L6598内部结构、引脚功能、单元电路工作原理及其在宽范围AC/DC适配器中的应用电路。

youdao

He is one of the longest hitters on the circuit, possesses a wide range of shots around the green and is a solid putter too.

BBC: SPORT | Golf | European Tour stats attack

On the proving grounds' high-speed circuit, as one might expect, the new Range Rover felt distinctly less ponderous and quite a bit more spirited and direct in handling.

WSJ: 2013 Range Rover Review: If You Must Buy a Luxury SUV... | Rumble Seat

What did happen is that for more than two decades, the United States Court of Appeals for the Federal Circuit (which sits below the Supreme Court in the patent appeals process) unilaterally expanded the range of stuff that could be patented.

FORBES: Software Patents and Judicial Activism