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[会议论文] 作者：周刚,,
来源： 年份：2004
对2YAH1536型振动筛提出了改进措施,并在降低该型振动筛故障率和提高该型振动筛产能方面取得了明显效果。...
[期刊论文] 作者：王美琴,
来源：科技创业家 年份：2004
YAH2460型振动筛是一种通用且已标准化的振动筛分设备,具有结构简单,处理能力强,坚固耐用,维修方便等特点.目前广泛应用于选矿、电力、轻工及化工等各行业对各种物料的分级,...
[期刊论文] 作者：XIE Youjun,LIU Yunhua,LONG Gua,
来源：武汉理工大学学报（材料科学版）（英文版） 年份：2004
To investigate the durability, especially the long-term stability of cement-based materials with very...
[期刊论文] 作者：,
来源：China's Foreign Trade 年份：2004
Long Yongtu conjures up in people's mind the long and formidable negotiations China has gone through...Long...
[期刊论文] 作者：LI Yong Le,SU Yang,XIA Fei Long,ZHANG Nan,,
来源：Science China(Technological Sciences) 年份：2004
An analytical model is presented to study vertical dynamic response of the ballastless track on long-span...
[期刊论文] 作者：,
来源：重庆邮电学院学报(自然科学版) 年份：2004
The problem of long transactions is a significant problem in spatial database....The checkout mechanism and multi version mechanism are two kind methods of solving the problem of long...
[期刊论文] 作者：PAN Zhengwei,CHANG Baohe,SUN L,
来源：中国科学A辑（英文版） 年份：2004
Very long and open aligned carbon nanotubes that reach about 2 mm long, an order of magnitude longer...
[期刊论文] 作者：,
来源：Reading and Composition(Senior High)(English) 年份：2004
在这里,我们要给大家讲两个以long这个词为主的习惯用语。大家都知道,long就是长。...第一个非常常用的口语,也是俗语,就是Over the long haul.HaulHere, we want to tell you...
[期刊论文] 作者：AN Shi-Zhong,Klaus Bongardt,Ru,
来源：中国物理C（英文版） 年份：2004
The storage of long bunches for long time intervals needs flattened stationary buckets with a large bucket...
[期刊论文] 作者：Li Qun Teng Xiaoming,
来源：中国稀土学报：英文版 年份：2004
Progress of studies on various multi-color long afterglow luminescence materials was reviewed.Two luminescent...mechanism of long afterglow behavior were discusse...
[期刊论文] 作者：Huang Yina,Jiang Xinye,Cai Qia,
来源：稀土学报（英文版） 年份：2004
A new kind of rare earth material with high efficient long-persistent phosphors, such as SrAl2O4:Eu,...The PMMA with long-...
[期刊论文] 作者：,
来源：材料热处理学报 年份：2004
How to improve the wear resistance of bearing surfaces, hereby achieving long life of orthopaedic joint...prostheses has long been a technical challenge with much...
[期刊论文] 作者：HONG Lin,TAKASE Keiji,SATO Koi,
来源：环境科学学报（英文版） 年份：2004
In this study, the characteristics of the long term discharge of a Terraced Paddy Field Catchment are...
[期刊论文] 作者：刘菊,杨春,唐安芬,陈霄,何敏,雍雪飞,
来源：中国微生物学会第4届感染与免疫及生物制品学术研讨会 年份：2004
建立可稳定收获高滴度RSV Long株病毒的培养方式,所获得的RSV Long株病毒液用于RSV抗体ELISA检测.RSV Long株病毒33℃传至4代后,病毒滴度升高,出现典型的细胞病变.以RSV Long...
[期刊论文] 作者：,
来源：China\'s Foreign Trade 年份：2004
China and Romania, over the past 55 years, have maintained a long and standing friendship, mutual solidarity...
[期刊论文] 作者：HanshanDong,
来源：材料热处理学报 年份：2004
How to improve the wear resistance of bearing surfaces, hereby achieving long life of orthopaedic joint...prostheses has long been a technical challenge with much...
[期刊论文] 作者：,
来源：The Journal of China Universities of Posts and Telecommunica 年份：2004
The long time-delay often exists in industrial process.In order to overcome the big overshoot and long...regulating time of the long time-delay system control,a n...
[期刊论文] 作者：LiuYun,
来源：中国对外贸易：英文版 年份：2004
As a friendly country, having long-term relat...
Effects of Long-Term Application of Inorganic Fertilizers on Biochemical Properties of a Rice-Planti
[期刊论文] 作者：ZHONG Wen-Hui,CAI Zu-Cong,ZHAN,
来源：土壤圈（意译名） 年份：2004
A long-term experiment was set up in Yingtan of Jiangxi Province to investigate the effects of long-term...
[期刊论文] 作者：XU Jing-zhe,JIANG Nan-zhe,ZHAN,
来源：高等学校化学研究（英文版） 年份：2004
Bisphenols containing long aliphatic hydrocarbon side chains were synthesized by the condensation of...
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