Study show there are three kinds of technical barrier: technical standard, technological regulation and quality assessment.

通过研究，我们发现技术壁垒有三种表现形式，即：技术标准、技术法规和。

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The reasons why they don't, and why the environment has not been ruined, have to do with prices, technological innovation, social change and government regulation in response to popular pressure.

他们不这样做的原因，以及为什么环境没有被破坏的原因，都与价格、技术创新、社会变革和政府应对公众压力的监管有关。

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The design starts with integration of technological interventions to emulate a treatment system, which then is taken over by nature to be managed with self regulation and low maintenance.

设计项目从整合技术、模拟处理系统开始，之后让自然接管该系统，实现自动调节和低维护。

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Private industry's technological advances, operating under state regulation, increased U.S. production last year at the fastest rate in the history of the domestic industry, which drilled its first commercial well in 1859.

WSJ: Review & Outlook: Drill, Barack, Drill

The United States is the world's largest economy, with an educational and technological infrastructure that is unmatched in the world, and stable energy regulation and investment policies.

CNN: Coal-burning CEO: U.S., China must fight pollution

Many will go on to jobs in industry, government, policy, regulation and law-enforcement that draw on their understanding of the social as well as technological characteristics of the internet and support their employers in securing the digital realm from multiple categories of threat.

BBC: Viewpoint: Preparing for the digital defence of the realm