The QA process, though often relegated to a secondary position in the production pipeline, is emphasized as a critical component of the development process.

QA过程虽然在开发流水线上只是处于次要的地位，然而在书中也强调为开发过程中的一个关键的部分。

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Underground pipeline is a kind of important basic establishment of modern production and living, it takes on some important basic work, such as information and energy transmission.

地下管线是现代生产和生活中的一个重要的基础设施，担负着信息传输、能源输送等基础工作。

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It is reported that X120 is by far the highest level of pipeline steel, at present, the world only the Japanese Nippon steel, Sumitomo and some European companies have production performance.

据悉，X120是迄今为止等级最高的管线钢，目前，国际上只有日本新日铁、住友和欧洲一些公司有过生产实绩。

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The fear is that China's strong imports of machinery, oil and ores in the early months of this year may simply have gone into one end of a production pipeline, out of which are now emerging excessive volumes of steel and heavy-industrial products that it cannot sell at home.

ECONOMIST: Global rebalancing

As such, the pipeline would not increase production of greenhouse gases.

FORBES: If U.S. Says No To Canadian Oil Sands Pipeline, China Will Say Yes

Over the past 10 years, the frequency of pipeline spills has decreased by 59%, and the volume of pipeline spills has decreased by 43%, even as overall production has increased both the mileage of active pipelines and the freight tons shipped by them.

FORBES: Pipeline Infrastructure: Rhetoric v. Reality