This guard is driven by a unity-gain, low impedance amplifier.

该保护端由一个单位增益的低阻抗放大器驱动。

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This guard at Potsdamer Platz is hugged by a Berliner carrying flowers on Nov. 12.

11月12日，这个在波茨坦广场的边防兵被一个手持鲜花的柏林人拥抱。

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This guard connection will prevent leakage current from de-energized channels from interfering with the measurement.

保护连接能防止来自去激励通道的漏流干扰测量。

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Mean dogs are often used to guard this property.

VOA: special.2010.05.30

At least since the eighteenth century, these lines have been singled out for their beauty and, considering that Milton is describing the hideous demons under Satan's control, the pastoral elegance of this little simile really catches us off guard.

至少从19世纪起，这些句子因为它们的美感经常被单列出来，并被认为是弥尔顿在描述撒旦控制下的可怕的恶魔,这个小比喻诗歌上的优雅,确实使我们毫无防备。

耶鲁公开课 - 弥尔顿课程节选

One other very important thing to understand about this defensive problem and this is one of the debatable issues between the old guard and the traditional interpretation; I'm still giving you the traditional view.

对于防御的问题还有另外一个很重要的因素,这也是老顽固们对传统观点,争论的一个话题,我还是采用传统观点的说法

耶鲁公开课 - 古希腊历史简介课程节选

Why short their tech-savvy replacements by giving this old guard a bailout?

FORBES: Magazine Article

He spent the last 8 years building this palatial estate in guard-gated Bradbury Estates.

FORBES: Live Like a Tycoon in This $78 Million Dollar Mansion

We saw for the first time in this conflict the National Guard come out in force.

CNN: Bill Hemmer: Sandstorm limiting visibility