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Abstract: The ashing loss of Pb in water samples has been studied in digestive method for determination of lead by dithizone spectrophotometry(GB 5750-85).After the digestive conditions are improved,the digestive loss of Pb in some polluted water samples
中文意思:
文摘:对国标5750-85双硫腙分光光度法中消化水样时铅的灰化损失进行了探讨,针对某些污染严重的水样,改进了消化处理的条件,有效地消除了灰化损失,提高了铅加标回收率,保证了分析测试数据的精密度和准确度。


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Abstract: The article reviewed the development of our hospital , esp the past ten years' overfly progress : import the bankroll over 1,500,000,000; get ride of external and internal debt and avoid foamy economy ; set up a model for the PLA and enter the b 文摘:回顾我院发展的道路,特别是近10年来医院的“跨越式”发展,引资上项高达1.5亿元,医院既无外债、又无内债,又不是泡沫经济,由窑洞医院走向全军发展中的典范,跨入了全国百佳的行列,充分的体现了发展才是硬道理。
Abstract: The article summarises the technical specifications, process parameters and operating characteristics of some special printing pastes for PCB, including photoresist solution, electroplating resist paste, solder resist, character release paste, p 文摘:简述了印制电路板生产用的专用印料:抗蚀刻印料,抗电镀印料,阻焊印料,字符、标记印料,塞孔印料,导电印料,可剥性印料,焊膏印料等各类印料的技术规范、工艺参数和生产操作技术。
Abstract: The article summed up mainly technical problems in scale production of precious metals temperature-measurement materials,carefully analysed the cause of labors those problems,and put resolved methods. 文摘:总结、归纳了贵金属测温材料规模化生产中所遇到的主要技术问题,详细分析了问题的成因并提出了相应的解决措施。
Abstract: The articleanalyzes developingmodes and innovation strategies of some non-state technology enterprises in south Jiangsu provence through investigating actuality of their innovations in technology and system, then discusses and concludes the chal 文摘:本文通过调查苏南部分民营科技企业技术创新和制度创新的现状,分析了它们的发展方式及创新策略,就其在新形势下受到的挑战和发展中遇到的问题进行了探讨和归纳。
Abstract: The articles introduce the method of China and Germany; according to their conditions of natural geography environment and technique etc, to determine crest the elevation of earth dam. 摘要:文章介绍我国及德国根据自然环境、技术条件采用的确定土坝坝顶高程的方法。
Abstract: The ashing loss of Pb in water samples has been studied in digestive method for determination of lead by dithizone spectrophotometry(GB 5750-85).After the digestive conditions are improved,the digestive loss of Pb in some polluted water samples 文摘:对国标5750-85双硫腙分光光度法中消化水样时铅的灰化损失进行了探讨,针对某些污染严重的水样,改进了消化处理的条件,有效地消除了灰化损失,提高了铅加标回收率,保证了分析测试数据的精密度和准确度。
Abstract: The atomic quantum behaviors in the system of two-mode squeezed vacuum field interacting with a two-level atom via two-photon process are studied by means of quantum theory.The condition for the occurrence of coherent trapping and the influence 文摘:运用全量子理论研究了双模压缩真空场与二能级原子双光子作用过程中原子的量子行为,论证了原子发生相干俘获的条件,讨论了压缩参数对原子偶极压缩的影响.
Abstract: The author analysed the Sichuan′s present situation and causes of fixed assets,and put forward four suggestions to strengthen investment,as well as three forecasts of fixed assets in Sichuan in 2000. 文摘:分析了四川省固定资产投资的现状及原因,提出了增大投资力度的四条建议,并对2000年四川省固定资产投资进行了多方案预测。
Abstract: The author argued that it's not efficient for not only the traditional concepts such as power, right, authority, force, coerce, and influence to describe the continuing changes in political system, but the equilibrium between different kinds of 摘要传统的权力、权利、权威、势力、强制力或影响力等概念不足以有效描述政治系统不断变化的状况,权力均衡或权力与权利之间的均衡亦不足以有效解释政治系统的稳定性。
Abstract: The author describes the fuzzy control towards high-pressure air valve in raw coal separation system, including fuzziness of input, setting-up of fuzzy control rules and certainty of outputs. 文摘:论述了如何对原煤分选系统中的高压气阀进行模糊控制,其中包括输入量模糊化、模糊控制规则的建立及输出量的清晰化。
Abstract: The author discusses how to suppress electro-magneticinterference from electric-network and converting arc welder itself in electromagetic compatible technical,and then guaranteed the normal operating of equipment. 文摘:阐述了用电磁兼容技术抑制来自电网及逆变弧焊机自身产生的电磁干扰,保证了设备的正常工作。
 
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