tetra-

['tetrə]['tetrə]

pref.表示“四”之义

  • Properties of Tetra - α - ( 8-quinolinoxy ) Metallophthalocyanines

    -α-(8-喹啉氧基)取代酞菁金属配合物的若干性质

  • Synthesis and performance of styrene - acrylic emulsion modified by double hydroxyl tetra - coordinated silicon

    双羟基 配位硅改性苯丙乳液的合成及性能研究

  • The application of disodium ethylene diamino tetra - acetate to the treatment of sports injuries

    地酸二钠 直流电导入疗法在运动创伤中的初步应用

  • Synthesis of 2 1-2 ( tetra - butyl - peroxy ) hexane

    2二甲基2双( 丁基过氧基)己烷的合成

  • Application of Tetra - Water Balance Model in Utilization and Protection of Water Resources in the Bosten Lake Basin

    水平衡模型在博斯腾湖流域水资源利用与保护中的应用

  • Production and End - uses of Tetra - axial Fabrics

    轴向织物的生产和用途

  • Synthesis of Tetra - acetoxy p - tert - butyl - calix 4 w_250 arene via Phase Transfer Catalysis

    相转移催化合成 乙酰氧基对叔丁基杯4w_268芳烃

  • Study on synthesis and antineoplastic activity of α - tetra - ( 4-carboxyphenoxy ) phthalocyanine zinc

    α- (4-羧基苯氧基)酞菁锌的合成与抗肿瘤活性研究

  • The UV-Vis absorption spectra fluorescence spectra and excited singlet lifetimes transient absorption spectra and excited triplet lifetimes of novel tetra - α(β) - ( 4-pyridyloxy ) zinc phthalocyanines were measured in this paper .

    测定了新合成的α位取代和β位取代的 -( 4-吡啶氧基)酞菁锌配合物的UV-Vis吸收光谱、荧光光谱及激发单重态寿命、纳秒瞬态吸收光谱与激发三重态寿命。

  • Methods : Contents of tetra - ammonium in eluent as index select concentration of ethanol volume and concentration of hy-drochloride acid three factors by using L9 ( 34 ) orthogonal table plan experiments optimize elution conditions .

    方法:以洗脱液中 铵碱的含量作指标,选择洗脱液乙醇浓度、用量、盐酸浓度3个因素,用L9(3~4)正交表安排实验,优化了洗脱条件。

  • TETRA - the new digital trunked communication system specifies Algebraic Codebook Excited Linear Prediction ( ACELP ) which is improved Codebook Excited Linear Prediction ( CELP ) as its speech codec . The bit rate of it is 4.567kbit/s .

    本文首先详细介绍了新一 数字集群通信系统 TETRA的语音编解码采用的编码速率4.567kbit/s的代数码本激励线性预测(ACELP)算法。

  • Efficient Organic Light-emitting Diode Using Lithium Tetra - ( 8-hydroxy-quinolinato ) Boron as the Electron Injection Layer

    8-羟基喹啉)硼锂作为电子注入层的高效有机发光二极管

  • Preparation of Novel Tetra - Substituted Carboxyl Aluminum Phthalocyanine - Silica Fluorescent Nanoparticles and Application to Acidity Measurements

    新型 羧基铝酞菁-二氧化硅荧光纳米粒子的合成及在酸度测定中的应用

  • High performance organic light-emitting diodes ( OLEDs ) with lithium tetra - ( 8-hydroxy-quinolinato ) boron ( LiBq_4 ) instead of LiF as the electron injection layer and aluminum as the cathode were fabricated .

    采用 (8-羟基喹啉)硼锂( LiBq4)代替LiF作为电子注入材料,以金属铝作为阴极,制备了有机电致发光器件。

  • Preparation and SEM study of superfine tetra - boron carbide

    B 4C粉末的 直流 电弧法制备及扫描电镜研究

  • Synthesis and Characterization of Tetra - ( p-hydroxylphenyl ) Porphyrin Manganese (ⅲ ) Complex

    (对-羟基) 苯基卟啉锰的合成和性质

  • Two novel and practical MCRs for the synthesis of tetra - and penta-substituted dihydropyrroles respectively and the corresponding reaction mechanisms are described in the third chapter .

    第三章介绍了两种新颖实用的分别合成 取代二氢吡咯和五取代二氢吡咯衍生物的 MCRs及其相应的反应机理。

  • Studies on Tetra - substituted Amino Aluminum Phthalocyanine as a New Red - region Substrate for Mimetic Peroxidase

    氨基铝酞菁作为过氧化物酶模拟酶新型红区荧光底物的研究

  • Poty ( lactic acid )( PLA ) grafted by acrylic acid ( AA ) was prepared with tetra - hydrofuran ( THF ) as solvent and dibenzoyl peroxide ( BPO ) as initiator .

    以四氢呋喃为溶剂、过氧化二苯甲酰(BPO)为引发剂制备了丙烯酸接枝聚乳酸( PLA-g-AA)。

  • The Synthesis of Tetra - ( p-Nitrophenyl ) Porphyrin under Microwave Irradiation

    微波辐射下催化合成 (对硝基 苯基)卟啉

  • Photophysical Properties of Tetra - α(β) - ( 4-pyridyloxy ) Zinc Phthalocyanines

    -α(β)-( 4-吡啶氧基)酞菁锌的光物理性质研究

  • Tetra - ( o-nitrophenyl ) cobalt porphyrins is the most active one among them by which the yield of o-diphenol is 18.53 % .

    在所考察的催化剂中催化性能最好的是 -(邻-硝基苯基)钴卟啉,在所选择的反应条件下邻苯二酚收率达到18.53%。

  • The compound ( 8 ) contains both tetra - 1 w_1057 a good electro-donor groups and the TTF structure as a Rigid framework difficult in deforming has good fluorescence property .

    研究了结构与性能的关系,化合物(8)具有 个供电子蜜胺核,接枝到TTF的刚性骨架上,有优异的荧光性能。

  • Determination of Glucose by a Red - Region Fluorescence Probe Tetra - Nitro Substituted Aluminum Phthalocyanine

    硝基铝酞菁红区荧光法测定葡萄糖

  • Characteristic Test and Analysis of the Tetra - lateral Electrode Frame Position Sensitive Detector

    四边形电极结构 PSD的特性测试与分析

  • Synthesis of tetra - ( o / p-chlorophenyl ) Metal Porphyrins

    -(邻/对氯苯基)金属卟啉的合成

  • Determination of Nucleic Acids at Nanogram Levels with Tetra - substituted Amino Aluminum Phthalocyanine by a Resonance Light - scattering Technique

    氨基铝酞菁共振光散射技术测定纳克级核酸

  • Large quantity of tetra - through octa - PCDDs and PCDFs amounting to about 40 percent of the sample wight were found in the waste . Among them 2 the most toxic congener was also detected .

    在热解残渣中检出了大量四至八氯取代的PCDDs和PCDFs,约占样品量的40%,其中包括剧毒的 2

  • Determination of Trace Copper by fluorescence quenching method with α - tetra - ( 4-pyridyl ) porphyrin

    α,β,γ,δ- -(4-吡啶)卟啉荧光熄灭法测定痕量铜的研究

  • Oxygen reduction on tetra - ( 4-trimethyl ammonium phenyl ) cobalt porphyrin

    氧在 -(4-三甲铵苯基)卟啉钴配合物上的电化学还原