precursor的例句大全

Anisic acid, a common flavoring, is a precursor substance used in the manufacture of a variety of spices and an important pharmaceutical intermediates, can be used for blood tests in medicine.

茴香酸是常见的食品香料，又是用于制造多种香料的前体物质。医学上也用于血液检验和合成重要的制药中间体。

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Application of Probability Density Function Analysis in the Monitoring of Engine Aerodynamic Instability Precursor

概率密度函数分析监测发动机气动不稳定征兆

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The Y value of acoustic emission load/ unload ratio descend to 1 when rock reach final elastic deformation can be seen as precursory characteristic for rock failure.

声发射数加卸载响应比在岩石弹性变形阶段后期下降到1，可以作为岩石失稳破坏的前兆。

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Those agglutinates turn out to contain hydroxyl, or OH, a precursor molecule to water.

事实证明这些凝集物含有羟基，即OH，具有亲水性。

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The PAN-based carbon fiber precursor was prepared with gel spinning method.

利用凝胶纺丝方法制备了聚丙烯腈基碳纤维原丝.

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It is believed that the present technological index of precursor prediction fibre number and conditioned weight fib re number has some defects and needs revising.

我们认为，现行的原丝预测纤度与公量纤度技术指标有不妥之处，应加以修订。

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Study on precursor of seismic deformation in contiguous area of Guangdong and Fujian Province

粤闽交界地区地震形变前兆研究

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The paper describes that new type inject steam technology can reduce coke precursor, resulting in operation rate of cracking furnace over 96.8%.

采用新型注汽技术改造，降低结焦先兆物，使裂解炉开工率提高到96.8%以上。

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The precursor solution was then condensed in porcelain crucible at 90 ℃ and was decomposed rapidly at 500 ℃ followed by a heat treatment at 500 ℃ for 1h.

最后在电炉内500℃的条件下分解，之后热处理1小时。

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Study on Kinetics of Crystalline Grain Growth of Cu-Mn Complex Oxides Nanometer Powder Precursor

纳米铜锰复合氧化物前驱物晶粒生长动力学研究

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Nano-copper hydroxide precursors with the diameter of 20 to 30 nm have been synthesized by means of wet-chemical way, using cupric sulphate and sodium hydroxide as reactant, ammonia as controlling reagent, respectively.

以硫酸铜和氢氧化钠为原料，氨水为纳米颗粒粒径控制剂，通过湿化学方法合成了20～30nm纳米氢氧化铜棒状原药。

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CuSCN thin films were prepared by electrochemical deposition method in aqueous solutions using cupric sulphate and potassium thiocyanate as precursor materials.

本文采用电化学沉积法，首次以硫酸铜和硫氰酸钾的水溶液为前驱体原料，在ITO导电玻璃上沉积出了性能良好的p-CuSCN半导体薄膜。

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Bismuth sulfide nanorods were synthesized in ionic liquid using bismuth nitrate and thiourea as precursor.

采用硝酸铋和硫脲为先驱原料，以离子液为反应介质，合成了硫化铋单晶纳米棒。

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Research on the Precursor of Catalyst Cu/ SiO_2 for Hydrogenation of Dimethyl Oxalate

草酸二甲酯加氢Cu/SiO2催化剂前体的研究

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Kinetics of curing reaction of benzoxazine precursors based on diphenyl oxide resin

苯并恶嗪二苯醚树脂中间体开环固化反应动力学

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The nanocrystalline ZnO particles were prepared by roasting basic carbonate precursor synthesized with very fine crystalline grain by using ZnSO_4.. 7H_2O, NaOH solution and NaHCO_3 powder.

以ZnSO4·7H2O为原料，添加NaOH溶液和NH4HCO3粉末，制备出晶粒细小的碱式碳酸盐前驱体。

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The main aspects studied in this thesis include: ( 1) The influence of magnesium basic carbonate, the precursor in the carbonation method, on MgO activity and particle size under conditions of different stoving temperature, pyrolysis style and grit number.

碳化法制备的前驱物（碱式碳酸镁）在烘干温度、热解方式、过筛目数不同等各种条件对氧化镁活性及粒度的影响。

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The solubility of the precursor ceric hydroxide in nitric acid, recycle of crystal mother liquor of ammonium ceric hydroxide, and recovery method for cerium in mother liquor have been investigated.

讨论了前驱体氢氧化铈的硝酸溶解性能、硝酸铈铵结晶母液的循环利用、结晶母液中铈的回收方法。

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The characterization of the performance of the high density polyethylene as precursors seeds of change arhat bed

高密度聚乙烯种子床物料的物性表征

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3-Diethoxyethylcyanide was an important precursor for synthesis of vitamin B1, cytosine and its derivatives.

3-二乙氧基丙腈是合成维生素B1、胞嘧啶及其衍生物等重要化合物的前体。

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