在此中
- 与 在此中 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
And in this process, we extended the research into the laser without the frequency splitting effect.
并且在此过程中,研究的内容适当地扩大到了非频率分裂激光器中。
-
The synthesis mechanism of Al_(13)in the process of electrolysis was discussed,the effects of electrolysis voltage,the original concentration of Al~(3+),the circulation mixing rate of the electrolyte and the exchanging frequency of the electrodes on the synthesis velocity of Al_(13),ratio of Al_(13)in total Aland the electrolysis time were studied.
本工作对电解过程中Al_(13)的形成机理进行了探讨,并研究了电解电压、Al~(3+)的初始浓度、电解液的循环搅拌速度和阴阳电极的互换频率对Al_(13)的合成速度、Al_(13)占总铝的比率及电解所需时间的影响,得出了电解法制备Al_(13)的最佳工艺条件:电极互换频率为1次·min~(-1)、电解液中Al~(3+)的初始浓度为0.5000mol·L~(-1)、电解电压为12V和0.5L·min~(-1)的电解液循环搅拌速度,在此条件下电解125min可制得碱化度为82.0%,Al_(13)占总铝的比率达91.2%的液体产品。
-
By teaching material medium operation method has a test, be in 3 tube of amylase solution and 3 tube of amylaceous solution in boiling water in the meantime heat preservation 5min, the amylaceous solution that leaves this temperature again and amylase solution mix equably continue heat preservation 5min.
按教材中的操作方法进行试验,把装有淀粉酶溶液的3号试管和装有淀粉溶液的3号试管在沸水中同时保温5min,再把此温度下的淀粉溶液和淀粉酶溶液均匀混合继续保温5min。
-
The contents are mainly divided into three parts: The first part describes mechanism and metabolism rule of natural products and its classification ; The second part is about the growth and development of plants and their mutual relationship, natural biological active substances which are produced in the course of defending plant diseases and insect damages. The third part is not only the function and principle of medicine, anticancer and antioxygen activity of different kinds of natural products such as resin ,essential oil, high molecule, grease and so on but also their application. The fourth is security problem of Plant Natural Products. Through the lessons, we can correctly understand and use the relationship between plants and environment.
其课程分为13章,内容主要分为4大部分,一是阐述植物天然产物的发生机理和代谢规律,介绍相关主要植物种类,并对天然产物进行化学分类;二是讲述植物天然产物和自身生长发育之间的关系、天然产物如何影响植物之间的相互关系、以及植物如何利用天然生物活性物质抵御病虫害的威胁;三是详细描述了各种天然产物,如植物自身生长发育过程中所产生的活性物质、植物与其它生物之间的相互关系中所产生的生物活性物质、植物毒性物质、植物药理活性物质、植物抗生物质、植物树脂、植物精油、植物高分子、植物油脂、植物抗氧化活性成分等,并阐述它们的药理活性、抗癌性、抗氧化性等对人类健康起作用的的功能和原理;四是提出了植物天然产物的安全性问题,并介绍相关案例和介绍相关法规;在此基础上还专门讲述了树脂、精油、高分子、以及油脂类等天然产物的应用。
-
Analysis of pipe burst is one of the important spatial analysis functions of underground pipeline network comprehensive GIS, the thesis puts forward the main assignment of pipe burst analysis, and analyzes the character of the usher nodes and the retral nodes of arborescent pipe network. The paper realizes the valve topological analysis of the pipe network.
爆管分析是地下管网GIS中重要的空间分析功能之一,论文论述了爆管分析的主要任务,阐述了爆管分析的理论模型,分析了树状管网中结点的父结点、子结点的性质,实现了管网的阀门拓扑关系的分析,在此基础上,完成了地下管网爆管关阀分析的算法实现。
-
After ferment, determined the consistency of the aweto; adjust the proportion of herbs by orthogonal test, determined the amrita-chun content of mycelium and amylose content of ferment liquid.
发酵后,测定冬虫夏草菌丝体的浓度;在此提取液浓度下,用正交试验法调节这些中药用量的配比,对菌丝体中的甘露醇及发酵液中的多糖含量进行测定。
-
The network is based on a W〓Cu〓 cube-like unit with eight 〓 anions at the corners of the distorted cube and twelve 〓 cations at the middle of the edges, in which a coordination anion 〓 acting as template is capsulated in the cavity of the W〓Cu〓 cube.
该结构中的基本单元可看成是一个类似立方体的W〓Cu〓结构,其中八个〓阴离子位于立方体的顶角,十二个〓阳离子处于立方体的边上,并且有一个〓阴离子作为模板被包裹在此立方体所形成的空腔中。
-
In this DVD, Cetin Tuker demonstrates the basic parameters of Glu3D in 3ds Max including the Glu3D main node, particle source, object manager and per object parameters.
在此DVD中,Cetin Tuker 展示了Max中Glu3D 流体插件的基本参数:Glu3D 主要结点,粒子源,对象管理器和每个对象参数。
-
On the basis of this, the role of condensational latent heat release is studied emphatically and a conceptual model of mutual positive feedback mechanism between the growing of meso-α-scale cyclone on MeiYu front and its accompanying intensifying precipitation due to stable condensational heating is posed, i. e. condensational heating generates negative allobar, divergent wind kinetic energy promotes meso-α-scale cyclone growing, and simultaneously, updraft motion is also reinforced, precipitation continues intensifying.
并在此基础上着重对凝结潜热释放的作用进行了研究,提出了一种由稳定性凝结加热作用而导致的梅雨锋上α中尺度气旋发展与降水增强之间相互正反馈机制的概念模型即凝结加热可以产生负变压,变压风动能通过转变为旋转风动能促进中气旋发展,同时上升运动得到增强,降水增幅。
-
The ethanol extract was dissolved with HCl, the acidic extract was basified to pH9-10 with NH_3-water and extracted with CHCl_3 to give total alkaloids. five alkaloids were isolated with column chromatography and preparative thin-layer chromatography, and three of them were identified as dehydrocorydaline、 corynoline and dihydrosanguinarine on the basis of spectral analysis MS,~1H-NMR,~(13C-NMR and physicochemical properties. All of them were found for the first time from this plant.
为研究灰绿黄堇的化学成分,本文将灰绿黄堇乙醇提取物采取酸提取、碱游离后萃取的方法得到总生物碱,然后利用柱色谱、制备薄层色谱等方法分离、纯化了灰绿黄堇中5种生物碱,并利用IR、MS、~1H-NMR、~(13)C-NMR等方法鉴定了其中的3种,分别为去氢紫堇碱、紫堇灵、二氢血根碱,均为首次在此植物中发现。
- 推荐网络例句
-
Do you know, i need you to come back
你知道吗,我需要你回来
-
Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
-
Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。