Conventional techniques require a patient to wait several days to receive results.

传统的技术需要病人等待好几天才知道结果。

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Because rats can be trained to spot tuberculosis -and to do it better than conventional techniques.

由于老鼠可以被训练定位肺结核，而且比常规技术做的更好。

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Second, and most importantly, many of the strongest aluminum alloys are not weldable using conventional techniques.

第二，也是最重要的一点，很多高强度铝合金不可使用惯用的技术焊接。

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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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