Rats can be trained to identify TB-positive sputum samples — and do it better than conventional techniques. Karen Hopkin reports.

老鼠在训练之后就可以鉴别出结核病菌为阳性的痰，比传统的技术好多了。

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Energy conversion with solid oxide fuel cells (SOFCs) using biomass-produced gas as fuels is a novel electrical power generation system. There are many merits compared to the conventional techniques.

利用固体氧化物燃料电池将生物质气直接转化为电能是一种新型的生物质气发电技术，这项技术与传统的发电技术相比具有很多优点。

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Advantages of the invention include higher yield than conventional techniques.

本发明的优点包括比传统技术更高的产量。

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It allows the creation of parts in shapes that conventional techniques cannot achieve, resulting in new, much more efficient designs in aircraft wings or heat exchangers, for example.

ECONOMIST: How a new manufacturing technology will change the world

Souped-up hybrid crops, such as maize, bred through conventional techniques rather than high-tech genetic engineering, do not keep their desired properties from one generation to the next because of natural genetic shuffling.

ECONOMIST: Terminator genes

As a result, field trials with these plants are 10 to 20 times as expensive as experiments with virtually identical plants modified with less precise, conventional techniques, so only a minuscule fraction of potentially important plants developed in university and corporate laboratories ever make it into field trials.

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