Executives at Rino International, which is based here in Dalian and makes industrial pollution control systems, declined to comment, beyond saying that it is conducting business as usual.

国际绿诺科技在这里以大连为基址，制造工业污染控制系统，它的高管们拒绝对此发表评论，逞强说这是正常商业行为。

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Experts disagree about the vulnerability of systems that run industrial plants, known as supervisory control and data acquisition (SCADA).

专家在被称为监测控制和数据采集(SCADA)的管理工业工厂的系统的脆弱性上意见不一。

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The same industrial control systems Maiffret's team was able to commandeer also run electrical grids, pipelines, chemical plants and other infrastructure.

迈弗雷特团队所攻占的工业控制系统，同样也运行着电网、输油管道、化工厂及其他基础设施。

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"Someone could attack the industrial control systems that control all the valves, all the distribution systems, and are used to turn on and off various aspects involved with energy and the electrical power grid and oil and gas distribution networks,".

VOA: standard.2009.08.11

What is clear is that critical infrastructure and industrial plant control systems are coming under more scrutiny from both attackers and defenders.

BBC: How to hack a nation's infrastructure

For example, industrial control systems are largely computer controlled and they can be reached in some cases from the Internet.

CNN: Cyber arms control? Forget about it

One of the key businesses of United Technologies is also in the area of climate control systems and services for multifamily, commercial and industrial facilities.

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