查询词典 modification

Individual organizational elements are seen as subject to successful and planned modification, enactable by deliberate decision.

单个组织元素可以在周密的计画和决策下成功地规划并被加以修改。

Optical quartz is supplied in single crystal Z-orientated blocks, up to 30 mm truck, of a right enantiomorphous modification of quartz.

光学石英是由东方石块的单一水晶提供，最多30MM卡车，正确对映形态的修正

This review focuses on the development and means of the modification of polymeric gene vectors making them have multifunction, i.e. the ability to maintain stability outside of cell, the ability of cell entrance, endosome escape, and the ability of nuclear membrane traversing. The main challenges remain and the future direction of polymeric vectors research are discussed.

本文在分析基因治疗过程的基础上，详述了基因载体应具有的4种基本功能－在细胞外保持稳定的功能、进入细胞的功能、逃离溶酶体的功能和进入细胞核的功能，并详细介绍了有关基因载体功能化修饰的方法和目前国际上的进展情况，总结了高聚物载体目前存在的主要问题及未来的发展方向。

This review focuses on the development and means of the modification of polymeric gene vector making them have multi-function—the ability to maintain stability outside of cell、the ability of cell entrance、the ability of endosome escape and the ability of nuclear membrane traversing, at last, we highlight the main challenges that remain and the future direction of polymeric vectors research.

本文在分析基因治疗过程的基础上，详述了基因载体应具有的四种基本功能——在细胞外保持稳定的功能、进入细胞的功能、逃离溶酶体的功能、进入细胞核的功能，并详细介绍了有关基因载体功能化修饰的方法和目前国际上的进展情况，最后本文总结了高聚物载体目前存在的主要问题及未来的发展方向。

The enzymic modification of lipids is a method of improving the nutritional value of lipids ,which is more excellent than chemical means.

通过酶促反应来改变天然脂肪的结构和组成，是较化学法更有利的提高脂肪营养价值的手段。

However, it is not clear if epigenetic modification can play a role on tumor malignancy.

然而，目前的研究中，有关非基因序列层次改变在癌症恶化过程中所扮演的角色仍有许多处於未知状态。

In other words, researchers have to prove that the disruption of this function, either genetically through mutation, or epigenetically through DNA methylation or chromatin modification, causes the initiation or progression of cancer.

换句话说，研究人员必须证明这些功能的中断，或者是通过遗传上的突变，或者是通过表观上的DNA甲基化或染色质修饰，导致癌症的发生以及进一步恶化。

Chemical modification including oxygenation, esterify , graft copolymerization and so on.

化学改性主要有氧化、交联、酯化和接枝共聚。

The main objective of this thesis is to investigate the formation and properties of negative thermal expansion glass-ceramics containing β-eucryptite. The effects of composition modification (SiO2 content, the kinds and amount of nucleation agents, excess Li2O) on CTE were also examined.

在锂铝矽酸盐(lithium aluminosilicate，Li2O-Al2O3-SiO2，简称LAS)系统中的固溶体β–eucryptite相具有负热膨胀系数，其与正膨胀性的精密元件复合，可藉由应力补偿，控制该元件的尺寸变化，以防性质变异。

Therefore, in order to reach the scaling down and modification of memory device in the future, the novel oxynitride process is potential and expectable gradually.

因此对於未来元件的尺寸微缩及改善特性，新颖的含氮氧化层制程技术是很有潜力及备受期待的。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。