The existing problems and development trends of the forming wheel dressing are analyzed.
并分析了目前成形砂轮修整中存在的问题及发展趋势。
Finally, some existing problems were pointed out and the technique development trends were given.
最后就视觉定位存在的问题和技术发展趋势进行了讨论。
This paper reviews developments of emergency system, including its development and applications. Comments on existing problems and trends of progress are discussed.
综述了目前应急系统的设计开发和应用，讨论了应急系统存在的问题及其发展趋势。
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