methylene是什么意思

网络释义

用法例句

FT-IR absorption characteristics and average molecular parameters of the mixtures were correlated;the molecular parameters included the number ratio of methylene to methyl(NCH2/NCH3),hydrogen aromaticity(faH),atomic ratio of hydrog.

为了从分子水平快速经济地分析重质油在热转化过程中的变化规律,利用四种模型化合物萘、四氢萘、十氢萘和正庚烷组成的混合体系来模拟重质油及其热转化缩合产物分子的基本组成,研究其红外吸收特性与平均分子参数(亚甲基和甲基的数目之比NCH2/NCH3、芳氢率faH、芳香环系氢碳原子比NHar/NCar等)的关系。

It is found that there exists a linear relation between the ratio of absorptivity of IR in 1460 cm-1 band to that in 1380 cm- 1 band and the ratio of methylene to methyl groups in the mixtures.

用傅立叶变换红外光谱法表征了取代多环芳烃与正构烷烃混合物，研究发现其亚甲基和甲基比值与１４６０ｃｍ－１和１３８０ｃｍ－１吸收峰的吸光度之比具有良好的线性关系，导出了其关联式。

The oxidation of methylene is an important part.

烃类催化氧化在石油、化工领域具有重要的研究价值与地位,而烃类亚甲基氧化研究作为其重要组成部分,具有重要的学术与应用价值。

Study on photocatalytic degradation for soluble methylene blue in water by SO_4~(2-) modified nano-sized TiO_2;

改性纳米二氧化钛光催化降解水中微量溶解性亚甲基蓝

Anodic stripping voltammetric determination of Sn(II) at poly methylene blue/multiwalled carbon nanotube modified electrode;

聚亚甲基蓝/碳纳米管修饰电极阳极溶出伏安法测定痕量锡

Kinetic analysis and mechanisms for adsorption of methylene blue from aqueous solution onto δ-MnO_2;

δ-MnO_2吸附染料亚甲基蓝的动力学和机理

Decoloration of methylene blue by ceramisrt packed-bed in pulsed high voltage electric field;

高压电场中陶粒填充床对亚甲基兰的脱色效能

Preparation of TiO_2/exfoliated-graphite composite and photocatalytic degradation of methylene blue;

TiO_2/膨胀石墨复合材料的制备及其对亚甲基兰的光催化降解

The absorption dynamics of methylene blue in alga and its effect on active oxygen;

亚甲基兰在水网藻上的吸附动力学与活性氧的相对产率

This method is based on the discoloring oxidation between methylene violet and hydrogen peroxide catalyzed by copper in the medium of HCl solution.

研究了在盐酸介质中,铜(Ⅱ)催化过氧化氢氧化亚甲基紫褪色反应的适宜条件与影响因素,建立了催化动力学光度法测定痕量铜的新方法。

Two polymers containing phenyleneethynylene or 2,7-diethynylenenaphthalene and phenylsilylene in their main chain were synthesized.

合成了两种带有苯炔或萘炔结构及苯基硅亚甲基的聚合物PSPE和PSNE,研究了它们的熔点,溶解性及固化反应。

MOMA (methylene bis 2-methoxyaniline)

亚甲基双2-甲氧基苯胺

dinitrosopentamethylene tetraamine

二亚硝基五亚甲基四胺

diethylenetriamine pentamethylene phosphoric acid

二乙三胺五亚甲基磷酸

Technetium[99mTc] Methylenediphosphonate

锝[99mTc]亚甲基二膦酸盐

One Step Synthesis of N-(4-hydroxy-3-methoxyphenylmethylene)-p-methylaniline by Solid Phase Reaction at Room Temperature

室温固相反应一步合成N-(4-羟基-3-甲氧基苯基亚甲基)-对甲苯胺

THE DETECTION METHOD OF MDMA INTOXIC ATION;

亚甲基双氧甲基苯丙胺中毒检验方法的研究

Synthesis of Novel Intermediate α-Ethoxycarbonylarylmethylideneiminophosphoranes;

新型α-乙酯基芳亚甲基膦亚胺中间体的合成

Solvent-free Synthesis of Novel N-amino-substituted 1,6-Methanoannulene-3,4-dicarboximide

新型N-氨基取代的1,6-亚甲基桥[10]轮烯-3,4-二甲酰亚胺的无溶剂合成

Study on the synthesis of 5,6-O-benzylidene-L-ascorbic acid and 5,6-O-benzylidene-D-isoascorbic acid

5,6-O-苯亚甲基-L-抗坏血酸和5,6-O-苯亚甲基-D-异抗坏血酸的合成

Polymethylene polyphenylene isocyanate

GB/T13658-1992多亚甲基多苯基异氰酸脂

3-4-methylenedioxy- methamphetamine (MDMA)

亚甲二氧基甲基苯丙胺

3,4-methylene dioxybenzaldehyde

３,４－亚甲二氧基苯甲醛

""ecstasy" [MDMA]"

“狂喜”〔亚甲二氧基甲基安非他明〕

dinitrobenzoylene urea

二硝基邻苯甲酰亚脲

Polymerization of Methyl Methacrylate by Copper(I) Tert-Butoxide;

叔丁醇亚铜催化甲基丙烯酸甲酯聚合

Study on Synthesis of N-methyl-4-aminophthalimide

N-甲基-4-氨基邻苯二甲酰亚胺的合成研究

Study on the Luminescence Property of Samarium Ion in Bis(benzoylmethyl) Sulfoxide System

钐(Ⅲ)在二苯甲酰基甲基亚砜体系中的发光

N-ethyl methylenedioxyamfetamine hydrochloride N-

乙基-盐酸亚甲二氧基安非他明