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A Study of the Distribution of Apple stem pitting virus in Tissues of Pear Tree Using In Situ Hybrid
[期刊论文] 作者：ZHAO Ying LIU Na NIU Jian-xin,
来源：中国农业科学：英文版 年份：2009
为了在梨树的纸巾理解苹果茎 pitting 病毒( ASPV )的分发并且直接为射击尖端解毒，叶子和射击提供 theorical 和技术支持， Korla 付小费给梨被用作材料，为 ASPV 的 cDNA 探查用...
[期刊论文] 作者：WEI Na NIU Pengcheng LIU Haife,
来源：偏微分方程：英文版 年份：2009
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[期刊论文] 作者：Yongmin Quan,Na Niu,Hongyi Li,,
来源：信息工程期刊:中英文版 年份：2018
Text mining is a text data analysis,found that the relationship between concepts and underlying concepts from unstructured text,it is extracted from large text...
Research on the Development of Text Mining Technology based on Bibliometrics and Knowledge Map Visua
[期刊论文] 作者：Qiuxue Xu,Na Niu,Yongmin Quan,,
来源：信息工程期刊：中英文版 年份：2017
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[期刊论文] 作者：Na Niu,Yongmin Quan,Hongyi Li,,
来源：信息工程期刊：中英文版 年份：2017
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A Study of the Distribution of Apple stem pitting virus in Tissues of Pear Tree sing In Situ Hybridi
[期刊论文] 作者：ZHAO Ying,LIU Na,NIU Jian-xin,
来源：中国农业科学（英文版） 年份：2004
To understand the distribution of Apple stem pitting virus (ASPV) in tissues of pear tree and provide directly theorical and technical support for shoot tips de...
[期刊论文] 作者：WEI Na,NIU Pengcheng,LIU Haifeng,
来源：偏微分方程（英文版） 年份：2009
We prove some new Hardy type inequalities on the bounded domain with smooth boundary in the Caot group. Several estimates of the first and second Dirich-let eig...
A Study of the Distribution of Apple stem pitting virus in Tissues of Pear Tree sing In Situ Hybridi
[期刊论文] 作者：ZHAO Ying,LIU Na,NIU Jian-xin,
来源：城市道桥与防洪 年份：2009
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥...
[期刊论文] 作者：Na NIU,Gaisheng ZHANG,Yue CAO,Yu ZHANG,Fang WEI,
来源：中国高等学校学术文摘·农学 年份：2008
A new method for producing a NIAN type wheat maintenance line with the male sterile gene rfv1was described. That is the variety Xinong Fpl, a 1BL/1RS translocat...
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