precursor的例句大全

An Erythromycin productive high-yielding mutant F1-57 was screened by the test of precursor tolerance. The fermentation yield of which is 10% more than that of parental strain.

通过红霉素耐前体物的筛选，选到了一株红霉素的高产变株F1-57，其发酵水平较亲株提高10%以上。

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A simultaneous synthetic template carbonization method ( SSTCM), where tetraethoxy silane ( TEOS) was used as the source of the silica template and resorcinol-formaldehyde gel as the carbon precursor, was suggested for the preparation of mesoporous carbons with a controllable pore structure.

以正硅酸乙酯为模板硅源，间苯二酚甲醛凝胶为炭前驱体，采用同步合成模板炭化（SSTCM）法制备了具有可控结构的中孔炭材料。

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Polyimide/ silica nano-hybrid films of different solid content were prepared via the sol-gel route using tetraethoxysilane ( TEOS) as inorganic precursor.

利用正硅酸乙酯（TEOS）做为无机前驱体，采用溶胶-凝胶（Sol Gel）法，制备了SiO2含量一定，固体含量不同的聚酰亚胺/二氧化硅（PI/SiO2）纳米杂化薄膜。

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Nano porous TiO 2 doped SiO 2 aerogel insulation were prepared via sol gel process using tetraethoxysilane ( TEOS) as the precursor and followed by ethanol supercritical drying.

以正硅酸四乙酯为硅源，钛白粉为红外遮光剂，通过溶胶－凝胶及超临界干燥过程制备了钛白粉掺杂SiO2气凝胶。

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Polyimide and polyimide/ SiO2 hybrid membranes were prepared via sol-gel process while Tetraethyl orthosilicate ( TEOS) was added as inorganic precursor.

以正硅酸乙酯为无机前驱体，采用溶胶-凝胶法制备了聚酰亚胺／SiO2无机杂化膜。

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The main work is as follows: Mesoporous SiO2 was synthesized in acidic condition using CTAB as template and tetraethyl orthosilicate ( TEOS) as inorganic precursor, which characterized by scanning electron microscopy and infrared spectrometry.

本论文主要工作如下：1、以CTAB为模板分子，正硅酸乙酯（TEOS）为硅源，在酸性条件下合成出介孔SiO2，利用扫描电镜和红外光谱进行了表征。

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Single-walled carbon nanotubes ( SWNTs) were continuously synthesized by floating pyrolysis method in the temperature range of 850-1160 ℃ by using tetraethyl orthosilicate ( TEOS) as raw material, ferrocene as the precursor of Fe particles.

以正硅酸乙酯（TEOS）为前驱体，二茂铁为催化剂前驱体，利用气相流动催化热解法在850～1160℃连续合成了单壁碳纳米管（SWNTS）。

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Chemo-enzymatic Synthesis of Bz-RGDS-NH_2, the Precursor of Cellular Adhesion Motif RGDS Tetrapeptide

化学&酶法合成细胞粘附位点RGDS前体四肽Bz-RGDS-NH2

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5-Aminolevulinic acid ( ALA) is a common precursor in the biosynthesis of tetrapyrrole compounds such as porphyrins, chlorophyll, heme and vitamin B12, widely exists in the cells of microorganisms, plants and animals.

5-氨基乙酰丙酸（5-aminolevulinic acid，ALA）是生物合成卟啉、叶绿素、亚铁血红素和维生素B12等四吡咯化合物的共同前体物质，广泛存在于微生物、植物和动物细胞中。

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Optimal selection method of the multiparameter non-dimensional earthquake precursor information

多参数无量纲地震前兆信息的最佳提取方法

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Tectonic analysis makes discrete seismic precursor be restored in time and space.

构造解析是要对离散性的地震前兆进行构造时空复位。

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The conditions for electro and magnetic precursor are the tectonic unit, the composition and thickness of Cenozoic group, the soil type near the surface and the lithologic property under Cenozoic group and the depth of the layer with high electric conductivity in the earth crust.

影响地电磁类台站映震能力的主要条件是构造单元、新生界盖层的结构与厚度、表土岩性、基底岩性与壳内高导层顶面埋深等。

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Based on the observed data and tectonophysics, the existence of seismogenic deformation field precursor ( the faulting system) before moderate and strong earthquakes in North China was demonstrated, it's kinetics and mechanics were proposed and examined by the method of finite element;

文中用实测资料和构造物理学观点论证了华北中、强地震前孕震形变场（断层活动系统）的存在和它的运动学与力学机制，并用有限元法加以检验；

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Effect of High Temperature Treatment on Properties of Sol Film for Polyimide Precursor

高温热处理对聚酰亚胺前驱体凝胶膜性能的影响

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Establishment of an immortalized neural precursor cell line with a temperature-sensitive mutant of SV40 large T antigen

温度敏感型基因永生化神经前体细胞系的建立

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Tensile Creep of UD-C_f/ SiC Composites Prepared by Precursor Pyrolysis and Hot Pressing at Elevated Temperature

先驱体转化-热压单向C f/SiC复合材料的高温拉伸蠕变

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Setting up some fixed stations and using some instruments ( such as water tube tiltmeter, tiltmeter, tensometer, strainmeter, etc.) to continuously monitor the crustal deformation in order to catch the short-impending precursor which can be used in earthquake prediction.

建立固定形变监测台站进行连续形变的观测（如连通管、倾斜仪、伸缩仪、应变仪等），以捕捉临震的形变前兆信息，用于震前的短临预报。

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Set up the Web Homepage for the Tianjin Seismic Precursor Network

天津市地震前兆台网主页的建立

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Chiral Resolution of Precursor of Chloramphenicol and Thiamphenicol by High Performance Capillary Electrophoresis

氯霉素前体和甲砜霉素前体的毛细管电泳手性分离

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The acquisition system of earthquake precursor data is one of the key devices for digital earthquake precursor station, its technical target and property have important influence on data quality.

地震前兆数据采集器是数字化地震前兆台站的关键性设备之一，其指标、性能对前兆观测数据质量有重要影响。

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