precursor的例句大全

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

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。

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。

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

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。

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。

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

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。

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。

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。

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。

A Wells notice is a precursor to a civil lawsuit in an SEC investigation.

“威尔斯通知”预示着在SEC的调查中将提起民事诉讼.

As one of the main precursor of poly ( phenylene sulfide amide), 4 chloro N ( 4 ′ chlorophenyl) benzamide ( DCBA) of high purity was two step synthesized from 4 chlorobenzoic acid and 4 chloroaniline with good yield.

以对氯苯甲酸和对氯苯胺为主要原料，高产率获得了4－氯－N－（4′－氯亚苯基）苯甲酰胺（简称DCBA）。

Amine precursor uptake and decarboxylation system

胺前体摄取及脱羧系统

Image analytical instrument is employed to study the section pattern of various deniers precursor fibers as well as quantitatively analyze and contrast their section area, perimeter, roundness and diameter.

采用图像分析仪研究了不同纤度原丝的截面形态，并对截面面积、周长、圆度、直径进行了定量分析、比较。

CH 4 is the main component of the escaping gas discharged from the anomalous site in Longqingxia reservoir, Yanqing County. It is mainly originated from biogenic reaction but not an earthquake precursor anomaly.

延庆龙庆峡水库翻花冒气异常释放的主要气体CH4来源于生物成因，而非地震前兆异常。

In this study, The Ti-PILC synthesized by the pillaring of Ti-precursor from the hydrolysis of modified TTIP with acetate group in water was firstly reported.

在本研究中，首次报道了乙酸改性钛酸四异丙酯水解制备钛溶胶的方法合成钛层柱粘土。

Accurate and stable outlet flow rate can be obtained by adjust the screw in precursor valve.

只需调节导阀的调节螺钉,就能获得精确、稳定的出口流量.

Thus, thematically, Thomas Hardy can be regarded as the precursor to modernism.

因此，就其创作主题而言，哈代堪称现代主义先驱。

Chemistry and Precursor Chemicals

化学与易制毒化学品