The 600a dc standard current source is designed in this paper, which can output 10 ~ 600a dc current.

介绍600 A直流电流标准源具有10 ~ 600 A直流标准电流输出能力。

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This paper expounds the principle and hardware components of intelligent up -flow standard current transformer and points out anti-jamming measures so that detection efficiency can be improved.

阐述了智能型自升流标准电流互感器的原理及其硬件组成，提出抗干扰的措施，以提高检测效率。

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To provide intelligent instruments with the cheap interface of the standard current sign, the RC low pass filter is used for producing a voltage signal which is proportion to PWM's duty rate from PWM.

为了给智能仪表提供廉价标准电流信号输出接口，可以使用RC低通滤波器，从PWM中分离出与占空比成正比的线性直流电压信号。

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"Most of the paint brands that we looked at had at least one sample that was above ten thousand parts per million, which is over a hundred times the current U.S.standard."

VOA: special.2009.08.31

Others are uncomfortable with the overdraft privileges on standard current accounts.

ECONOMIST: Squeezing the banks

As the pitch came in, he pulled the bat down, angled it parallel to the ground, and took a level swing a swing very different from the homer-seeking, flailing uppercut that has become standard among current players, who have produced the highest strikeout numbers in baseball history.

NEWYORKER: Artful Dodgers

However, experts say that the oil industry would naturally be at odds with the proposal for an increased renewable fuel standard, particularly since it only reluctantly accepted the current standard of 7.5 billion gallons of renewables by 2012.

FORBES: Bush's Energy Obstacle: Ethanol