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如何应用和评价POP-Q评估体系 被引量:19
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作者 罗新 朱亚飞 《实用妇产科杂志》 CAS CSCD 北大核心 2005年第3期132-135,共4页
关键词 脱垂 临床应用 POP 妇产科学 examination) 盆底 评价体系 评估体系 出版 教材
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氦同位素锂辉石标准物质的研制
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作者 李延河 宋鹤彬 乐国量 《质谱学报》 EI CAS CSCD 2005年第z1期87-88,共2页
Two spodumene samples for helium isotope standard were prepared. According to the preparation criterion on first grade national standard materials, homogeneity tests of helium contents and isotope compositions of two ... Two spodumene samples for helium isotope standard were prepared. According to the preparation criterion on first grade national standard materials, homogeneity tests of helium contents and isotope compositions of two samples were carried out using the heat melt method. The homogeneity tests and certification analysis show that 4He contents and 3He/4He ratios of two reference material samples are homogeneous. Afterward two standard samples were distributed to four laboratories for cooperative fixed values. All data of various laboratories submit to normal distribution and not abnormity values. The average values of each laboratory are recommended as values of two spodumene samples for helium isotope standard. 展开更多
关键词 HELIUM ISOTOPE standard SPODUMENE HOMOGENEOUS examination fixed values
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谈谈与examination搭配的词语
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作者 程红梅 《中小学英语教学与研究》 北大核心 2022年第5期76-78,共3页
本文结合相关辞书,概述与examination相关的表达。1.用prepare/revise/studyfor等表示“为考试而准备”“复习迎考”“温习备考”。例如:We are preparing for the examination next week.我们正在为下周的考试做准备。I do not have mu... 本文结合相关辞书,概述与examination相关的表达。1.用prepare/revise/studyfor等表示“为考试而准备”“复习迎考”“温习备考”。例如:We are preparing for the examination next week.我们正在为下周的考试做准备。I do not have much time to revise for examinations.我没有很多时间复习迎考。Ineed time to study for tomorrow's exami nation.我需要时间学习,准备明天的考试。 展开更多
关键词 PREPARING EXAMINATION 复习迎考
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Impact of salinity on treatment of saline wastewater by sequencing batch biofilm reactor process 被引量:4
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作者 卢杰 闫雪 +2 位作者 马艳飞 田彩星 丁金城 《Journal of Central South University》 SCIE EI CAS 2014年第5期1989-1994,共6页
High salinity industrial wastewater is difficult to treat using biological treatment system because of the high concentrations of salt.The potential of a sequencing batch biofilm reactor(SBBR)process in treating synth... High salinity industrial wastewater is difficult to treat using biological treatment system because of the high concentrations of salt.The potential of a sequencing batch biofilm reactor(SBBR)process in treating synthetic high salinity wastewater was evaluated at laboratory scale during a 110-day operation.The reactor was operated in a 12 h cycle,and each cycle consisted of 0.25 h influent addition,8 h aeration,3 h anoxic reaction,0.5 h sedimentation and 0.25 h effluent withdrawal.Gradual increase in salinity gradient was applied during the acclimatization period.The acclimated SBBR system was demonstrated to be an effective process to remove organic compounds and ammonia nitrogen under high salinity conditions with chemical oxygen demand(COD)and ammonia nitrogen(NH3-N)removal efficiencies of 88% and 80%,respectively.The microscopic examination indicated that rather than rotifers or vorticella,the zoogloea,filamentous fungus mingled with a small quantity of swimming infusorians were dominant bacteria in SBBR system.The removal efficiencies close to 80% in COD and 75% in NH3-N were achieved at an organic loading rate(OLR)of 0.96 kg COD/(m3·d),pH of 7.0,salinity of 14 g/L and NH3-N of 30 mg/L. 展开更多
关键词 sequencing batch biofilm reactor saline wastewater microscopic examination sludge acclimation salinity shock
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夹层结构侧压性能试验方法(英文) 被引量:1
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作者 周祝林 吴伯明 《材料工程》 EI CAS CSCD 北大核心 2009年第S2期453-456,共4页
Seven sandwich construction properties test methods of the national standards(GB/T1452-1457,GB/T1464),which published in 2005 by People's Republic of China.Based on a large number of experiments and design,refer t... Seven sandwich construction properties test methods of the national standards(GB/T1452-1457,GB/T1464),which published in 2005 by People's Republic of China.Based on a large number of experiments and design,refer to international advanced national standards,with international advanced level,from the specimen size,experiment methods,laboratory fixtures,the calculate results are all more reasonable,scientific,comprehensive and practical than the international advanced country standards.This paper specifies the test validation report of the test method for edgewise compressive properties of sandwich construction,the test data results of the specimen size,experiment methods,load speed,calculation formula and other aspects,to show the rationality and scientific of the technical requirements by national standards,and particularly taking into account the thickness of different facings,calculation formula of the edgewise compressive properties of sandwich construction with different facings,which is international advanced national standards do not have,currently. 展开更多
关键词 SANDWICH construction standard EXAMINATION method EDGEWISE COMPRESSIVE PROPERTIES
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Causes for Inefficient Oral English Teaching and Strategies to Improve
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作者 赵健 《陕西师范大学学报(哲学社会科学版)》 CSSCI 北大核心 2002年第S3期78-81,共4页
The paper analyses the causes of the backwardness of oral English teaching in the universities from the aspects of CET4,oral classes,oral coursebook, teaching methodology and teaching evaluation.It also presents sever... The paper analyses the causes of the backwardness of oral English teaching in the universities from the aspects of CET4,oral classes,oral coursebook, teaching methodology and teaching evaluation.It also presents several strategies to change the unfavorable situation. 展开更多
关键词 ORAL ENGLISH TEACHING System of EXAMINATION Coursebook
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Promoting Government Supervision and Optimizing Government Service Innovation
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作者 Yuan Weihai 《学术界》 CSSCI 北大核心 2017年第11期278-285,共8页
Decentralization and strengthening supervision are the two wings of the reform of administrative examination and approval system. At present, in the supervision process of Chinese government, the phenomenon of strict ... Decentralization and strengthening supervision are the two wings of the reform of administrative examination and approval system. At present, in the supervision process of Chinese government, the phenomenon of strict approval and slack supervision still exists in some local governments. And the dynamic supervision mechanism and supervision restriction mechanism of some local governments are still not perfect. These problems directly lead to"regulatory vacuum"and service absence and other circumstances. The existence of these circumstances will block the process of China's administrative examination and approval system reform. As a result to explore how to promote government supervision innovation and optimize government services is the first important thing, and then to create conditions for the rapid, stable and orderly progress of the administrative examination,what's more to approval system reform.Based on this thesis, the author realizes legal supervision, implement informatization supervision.It not only has increased normalized supervision, improve the administrative examination and approval all-round supervision mechanism, but also established the third party assessment normalization mechanism, and optimize the administrative examination and approval policy advocacy mechanism as well. 展开更多
关键词 DECENTRALIZATION ADMINISTRATIVE EXAMINATION and approval SUPERVISION INNOVATION service optimization
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