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51.
在分析PDA测量软件发展现状的前提下,利用高端PDA强大的计算、通信、网络功能和丰富的图形界面功能及全站仪的优点,提出一种基于工业型PDA的单人全站仪作业支持系统,并分析数据管理和系统的开发原理、关键技术．该系统具有很强的实用性。 相似文献
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IntroductionThe HAT( humid air turbine) cycle is an ad-vanced power generation system with high efficien-cy,low cost,high specific power,excellentoff- de-sign performance and low NOx emissions withoutcomplex system introduction.It has aroused con-siderable interest,and is predicted as an advancedthermal power cycle for this century[1] .The proto-type of modern HAT cycle was proposed by Morietal.,and gotmuch progress recently.HAT cycleuses a working fluid of air,water and steam mix-ture,an… 相似文献