的果实分布密度比开心形树高几倍到几十倍，而47年生树的差异不太明显。5人工授粉明显提高库尔勒香梨的座果率，但萼片脱落与人工授粉之间没有直接关系。在宏观上，萼片脱落主要与树势有关，营养...

北京理工大学珠海学院2020届本科生毕业设计The graduation project's mission is to make a production plant design,whose annual output is 4,000 tons of phytase preparation.AbstractThis ...

北京理工大学珠海学院2020届本科生毕业设计诚信承诺书本人郑重承诺：本人承诺呈交的毕业设计《保有量4000头猪的养殖场沼气系统设计》是在指导教师的指导下，独立开展研究取得的成果，文中引用他...

2.3.2.2脂肪酸甲酯的定量分析.122.4试验方法.4432.4.1原料油的预处理.132.4.2树脂的预处理.132.4.3间歇法预酯化试验方法132.4.4连续法预酯化试验方法360...142.4.4.1单根反应器连续预酯化试验方...

广西科技大学鹿山学院本科生毕业设计〔论文)AbstractBoth sides of the needle for Rutaceae Zanthoxylum,mainly distributed in China's Fujian,Guangdong,Guangxi,Yunnan and other places,is...

目录3.1.1试验材料..273.1.2试验方法273.2gRT-PCR分析....33.2.1试验材料.….313.2.2试验方法.313.3结果与分析.343.3.1BSR-Seq转录组测序分析..343.3.2倭化突变体cd1初步定位.373.4相关候选基因...

本科毕业论文（设计）Abstract:ObjectAmmoniumformateisusedindrugsynthesisasahydrogendonoroftrans ferhydrogenation(mainlycatalytictransferhydrogenation).Itisalsowidelyusedinthesynthes...

AbstractThe purpose of this study is to improve the quality of teaching,to improve thestudents'chemical core literacy,on the basis of explaining the concept of chemicalcore literac...

Abstract Carbon nanotubes (CNTs)have led to many new technical developments andapplications such as being used for the modified electrodes due to their high chemical stability,high...

北京理工大学珠海学院2020届本科生毕业设计Annual production of 500 million tablets of loratadine oraldisintegrating tablets workshop designAbstractsLoratadine (LORA)is an antihistami...