Retraining workers, particularly in technical fields, can be effective, but the benefits accrue slowly over time.

再就业培训的确有效，尤其是在技术行业，但收益实现周期太长；

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Quantized study of rock mass classification is one of the important subjects in the technical fields of underground engineering.

坑道围岩分类的定量化研究是地下工程技术领域中重大课题之一。

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Embedded system covers microelectronics technology, electronic information technology, computer software and hardware and many other technical fields.

嵌入式系统涵盖了微电子技术、电子信息技术、计算机软件和硬件等多项技术领域的应用。

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They make up just 25 percent of the workforce in the science and technical fields.

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In technical fields, it is possible to create specialised databases that improve the accuracy of the spoken responses considerably.

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At the graduate level, international students generally represent half to two-thirds of new U.S. degree holders in key technical fields.

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