And the answer,she says, is that bilingual people are often better at controlling their attention -- a function called the executive control system.

VOA: special.2011.03.09

So that's a negative feedback control system.

这就是负反馈控制系统得名的原因

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So, the system that gets designed in order to implement the cruise control

而那个为了实现恒速控制的系统，

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And his quality control system at Motown was like a similar system in car factories.

VOA: special.2009.05.11

One of the small rockets of his automatic control system stopped working.

VOA: special.2009.06.17

The Apollo spacecraft lost electrical power to its control system.

VOA: special.2009.07.29

Raduege says one of his biggest concerns in Houston is the computer-run electronic control system that is vital to energy sector operations the country depends on.

VOA: standard.2009.08.11

Workers built a huge system of waterways and pumping stations to control the overflow of Lake Okeechobee, north of the Everglades.

VOA: special.2009.06.30

It undermines the civilian control of the military that is at the core of our democratic system."

VOA: special.2010.06.26

Collectivism is the system of ownership and control of the means of production by the people collectively, usually under the supervision of a government.

VOA: special.2010.06.06

Researchers at the University of Toronto in Canada are studying a mobile phone system that may help people with diabetes control their blood pressure.

VOA: special.2010.12.06

"The brain-machine interface is a system that allows disabled people, people suffering from physical disabilities to communicate with external world and also to control devices."

VOA: special.2011.04.04

He took control of the system to correct the movement.

VOA: special.2009.06.17

It lets you observe and control your oxygen system.

VOA: special.2011.04.06

Neil Armstrong took manual control of the guidance system and, with just 20 seconds of fuel remaining, coasted to a landing.

VOA: standard.2009.07.16

Daryll Kimball,the Executive Director of the Arms Control Association, a private research firm, says President Obama is more skeptical about the missile-defense system.

VOA: standard.2009.07.15

Republicans stood united in opposition to the legislation, claiming it would increase the national debt, and put the government in firm control of the health care system.

VOA: standard.2010.03.22

Republican opposition was not a surprise, with all but one rejecting the bill on grounds that it would sharply increase the federal deficit, raise insurance costs, and give the government control of the health care system.

VOA: standard.2009.11.08

Republicans assert the legislation will lead to federal government control of the health care system, higher costs and deficits and debt, and bitterly complain about Democrat's plan to pass the Senate-approved bill without a direct vote, by packaging it with a separate measure of changes.

VOA: standard.2010.03.19