The delay in concluding the DDA negotiations is therefore a source of continuing concern.

在达成多哈回合谈判结论方面的拖延，正是外界持续担忧的根源。

youdao

An approach for modeling rock crack propagation using discontinuous deformation analysis (DDA) method is presented.

提出一种用非连续变形分析方法模拟岩石裂纹扩展的方法。

youdao

This paper USES Discontinuous Deformation Analysis (DDA) to analyse the dynamic stability of a rock slope slide.

本文用块体系统非连续变形分析(DDA)方法，对岩石滑坡体进行动态稳定分析。

youdao

Through the Roof says it has sent out more than 25, 000 copies of its leaflet on how to prepare for the DDA - ample evidence that a lot work is being done to prepare.

BBC: NEWS | UK | Religion gears up for disability law

The Dispensing Doctors Association (DDA) - which represents family GPs prescribing medicines - is supporting the wholesalers in their injunction bid against Pfizer.

BBC: Last Updated: Friday, 2 March 2007, 07:15 GMT

According to Mr Bowler, press speculation has led to fears among some congregations that their church will have to close if it doesn't comply with the Disability Discrimination Act (DDA) - the final phase of which comes into effect on 1 October.

BBC: NEWS | UK | Religion gears up for disability law