It is a research engine that lets you access expert content from the "Deep Web", the part of the Internet that is not indexed by traditional search engines (e.g. databases, journals etc.).

这是一个研究引擎帮助你进入专业内容的“深层网络”：那是互联网中没有被传统的搜索引擎索引或收录的信息(比如一些专业数据库，期刊等)。

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Choosing a template engine depends largely on your requirements, so a little research and experimentation is in order.

如何选择模板引擎在很大程度上取决于要求，因此适宜进行少量研究和试验。

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About half its new engine projects are based abroad, along with the same proportion of its research and development.

大约一半的新引擎项目是在国外开展，同样，一半的研发也是在国外进行的。

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Scooters, chainsaws, motorcycles, motorboats, lawn mowers and so forth are likely to bear the brunt of the pain, but the list is likely to be much longer and may ultimately include an estimated 200 million or so valued assets owned by people in the United States, according to research by an engine manufacturers group.

FORBES: Biggest Battle Yet for Biofuels Begins

We can do this because what this university is going to lead will be more than a pioneering research center or an economic engine for Pennsylvania and America for years to come.

WHITEHOUSE: Winning the Future with Clean Energy

Currently, the research effort has pioneered a hybrid engine that is cleaner than a diesel engine and almost twice as efficient as a typical gasoline-powered engine.

FORBES: The Other "Hybrid Engine"