Power generation by waste heat of middle or low temperature is such a good method of recovering waste heat and produce secondary energy.

中低温废热发电就是回收废热而生产二次优质能源的一种方法。

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The results showed that there are three generation and expulsion styles in Sunhu: persistent subsidence style, forepart subsidence style and secondary subsidence style.

结果表明，孙虎地区存在持续沉降型、早期沉降型和二次沉降型三种生排烃类型。

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Mechanism of secondary hydrocarbon generation was discussed and considered to be continuous with the primary generation.

对二次生烃机理进行了讨论，认为二次生烃与一次生烃连续。

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They say a generation of unprotected children are now in secondary school, where they are at greater risk.

BBC: A million children at risk of measles, doctors warn

Sony, for its part, is working to make that secondary display massively more appealing -- the company's latest generation of high-end camcorders adds an HDMI input, with an option to display content from any compatible source (a full-size adapter ships in the box).

ENGADGET: Sony Handycam PJ790V and PJ650V get brighter projectors with HDMI input, we go hands-on

No one says that free high school education is a socialist program, now that we know it is not enough, what is the rationale NOT to provide post-secondary education for free after all it is an investment in our next generation.

FORBES: How To Fix The Student Loan System