methylene怎么读

英式音标：[\'meθɪli:n]

美式音标：[\'meθəlin]

methylene基本解释

n. [有化] 亚甲基；甲叉

methylene的意思释义

n.

亚甲基；

英英释义

n.the bivalent radical CH2 derived from methane

同义词：methylene groupmethylene radical

methylene用法及例句

词组短语

methylene blue亚甲蓝；美蓝

methylene chloride二氯甲烷，亚甲基氯

例句参考

Adsorption of methylene blue on low-cost adsorbents: a review.

Olefin homologation with titanium methylene compounds

Methylene blue staining of dysplastic and nondysplastic Barrett\'s esophagus: an in vivo and ex vivo study.

Adsorption of methylene blue onto bamboo-based activated carbon: kinetics and equilibrium studies.

Methylene blue-directed biopsies improve detection of intestinal metaplasia and dysplasia in Barrett\'s esophagus

Methylene blue-aided chromoendoscopy for the detection of intraepithelial neoplasia and colon cancer in ulcerative colitis.

Kinetics and mechanism of removal of methylene blue by adsorption on various carbons—a comparative study

Equilibrium, kinetics, mechanism, and process design for the sorption of methylene blue onto rice husk.

Synthesis and structure-activity relationships of phenylenebis(methylene)-linked bis-tetraazamacrocycles that inhibit HIV replicatio...

methylene词源

methylene (n.)

1835, from French méthylène (1834), coined by Jean-Baptiste-André Dumas (1800-1884) and Eugène-Melchior Péligot (1811-1890) from Greek methy \"wine\" (see mead (n.1)) + hyle \"wood\" + Greek name-forming element -ene. So called because detected in wood alcohol. \"The breakdown of methylene into methyl and -ene, and the identification of the last syllable of methyl with the general suffix -ly, led to the use of meth- as a separate combining-element, as, for example, in methane, methacrylic\" [Flood].

methylene相关例句

1. He had in fact intentionally used crystal methylene.

事实上，他曾刻意服用晶体甲基。

2. Do you bring the Retort Kit, Methylene Blue Kit to the platform?

你带了固相蒸馏仪和亚甲基蓝测试仪到平台上吗？

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3. The eggs of intestinal schistosomiasis can be detected in faecal specimens through a technique using methylene blue-stained cellophane soaked in glycerine or glass slides.

通过一种使用将亚甲基蓝染色透明纸浸在甘油中或放在玻片之间的技术，可在粪便标本中发现肠血吸虫病的虫卵。

5. One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group.

活性亚甲基上的一个氢原子是被环氧基所取代的。

6. Beans are steamed, so that dissolved caffeine rises to the surface, where it is washed off using an organic solvent called methylene chloride.

咖啡豆进行蒸汽压力后使溶解的咖啡因漂浮于表面，然后使用一种叫做二氯甲烷的有机溶剂将其过滤掉，即成为脱咖啡因产品。

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7. Phenylethyl than malonic acid methyl malonic acid benzene over a methylene, metal complexes of stability and performance is a lack of research.

苯乙基丙二酸比苯甲基丙二酸多一个亚甲基，其金属配合物的稳定性及性能尚缺乏研究。

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8. It shows that the EGME and methylene blue test adsorption methods are well repeating, correct and reliable testing methods of specific surface area.

实验研究证明，EGME法和亚甲基蓝吸附法是重复性好、准确可靠的泥页岩比表面积测定方法。

9. Thirteen new compounds of the alkyl styryl indoline spirobenzopyrans were synthesized from the condensation of 2-methylene indoline with the designed salicylaldehyde .

利用2-亚甲基吲哚啉和取代水杨醛缩合得到十三种新的烷基苯乙烯基吲哚啉螺苯并吡喃。

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10. The instillation of methylene blue into the esophagus during bronchoscopy is a useful diagnostic method.

藉由直接经食道注射甲基蓝之支气管镜术为一可行的诊断方法。

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11. Objective To assess the value of methylene blue and parker ink staining in the detection of Malassezia.

目的评价美兰染色和派克墨水染色在马拉色菌检测中的应用。

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12. The results showed that Spirulina subsalsa could use methylene blue dye as only N resource for its growth.

结果表明，盐泽螺旋藻可由染料亚甲基兰提供唯一氮源，但不能提供唯一碳源。

13. The DET method qualitatively distinguishes the two hydrogen atoms in methylene , and the results for carbon are better than those determined by ah initio method.

密度泛函方法定性地区分了亚甲基上两个氢的不同，对碳的化学位移计算要比从头算法稍好。

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14. Determination of the methylene blue of a soil by means of the stain test.

研究和试验。岩石类土壤亚甲基蓝吸收能力的测量。

15. The dynamic analysis of the catalysis of Methylene blue shows that the degradation of dye under high concentrated solution is first-order reaction.

溶液中亚甲基蓝的光催化降解动力学研究表明染料在高浓度下的降解呈一级动力学特征。

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16. Study on Synthesis, Structure and Reaction ofa New Compound 2, 3- Methylene- 5, 8 - Dimethoxy Naphthalene.

新化合物2，3—亚甲基—5，8—二甲氧基萘的合成、结构及反应的研究。

17. And effective drug for the treatment of methylene blue pigment class.

有效治疗药为色素类的亚甲基蓝。

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18. Beans are steamed, so that dissolved caffeine rises to the surface, where it is washed off using an organic solvent called methylene chloride.

脱咖啡因咖啡使用了化学物品 。咖啡豆进行蒸汽压力后使溶解的咖啡因漂浮于表面，然后使用一种叫做二氯甲烷的有机溶剂将其过滤掉，即成为脱咖啡因产品。

19. Photocatalytic degradation of methylene blue dye in aqueous solution with WO3 dispersion has been investigated.

以WO3粉末为催化剂，研究了在水溶液中次甲基蓝染料的光催化降解。

20. The SEM morphology of GAC and ACF after microwave radiation was investigated and the treatment of simulation wastewater with methylene blue dye by microwave radiation was studied.

考察了微波辐射后GAC和ACF的SEM形貌，研究了微波辐射处理亚甲基蓝染料模拟废水情况。

21. The adsorption rate of ACF was more rapid than that of GAC in adsorbing methylene blue, so the adsorption equilibrium of ACF can be easily reached within a short time.

与颗粒状活性炭（GAC）相比，活性炭纤维吸附脱色亚甲基蓝的速度快，在短时间内，就能达到吸附平衡。

22. The adsorption property on methylene blue and iodin of the resultant hemp stem-based activated carbons increased with the increasing of surface area.

汉麻秆活性炭对碘及亚甲基蓝的吸附值随比表面积的增大而增加。

23. Fe-Mn nodules collected from the East Pacific Ocean were used for decolorization of a cationic dye methylene blue(MB) in a batch system.

利用锰氧化物具有高的吸附与氧化还原化学活性的特点，研究了采自东太平洋的铁锰结核对阳离子染料次甲基蓝氧化性脱色特征。

24. The Methylene Blue, Congo Red and Dimethoate was use to photodegradation, and then some measures that can be referred were raised.

选取亚甲基兰、刚果红和有机磷农药乐果进行初步的室内、室外降解实验，进而提出系统还需优化之处，可供相关人员参考。

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25. In this paper, pretreatment device for determination of sulfide in water by methylene blue spectrophotometry was improved.

本文对亚甲基分光光度法测定水质硫化物的预处理装置进行了改进。

26. The most common determining methods of corrosive gas - hydrogen sulfide are the methylene blue spectrophotometry and the iodimetry, however, these two methods are both affected by many factors.

腐蚀性气体硫化氢的测定方法较常见的是亚甲基蓝分光光度法和碘量法，这两种测定方法都受到众多因素的影响。

27. Objective: To evaluate the correlation between the methylene tetrahydrofolate reductase (MTHFR) mononucleotide polymorphism and risk of onset for carcinoma of the esophagus and gastric cardia.

目的：探讨食管癌高发区亚甲基四氢叶酸还原酶（MTHFR）基因单核苷酸多态与食管癌、贲门癌发病风险的关系。

28. Process of photocatalytic decomposition of methylene blue on cadmium sulphide was studied using cadmium sulphide nanoparticles as photocatalyst and tungsten as simulated visible light.

以硫化镉为光催化剂，钨灯模拟可见光，研究了硫化镉对活性染料亚甲基蓝的光催化降解过程。

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29. And the visible photoelectric activities of the films were characterized by degradation rate of the methylene blue under visible light.

并通过亚甲基蓝溶液在可见光照射下的催化降解脱色率来表征薄膜的催化活性。

30. Six kinds of phenyl hydrazones were synthesized by the reaction of ice bath using aromatic diazonium salt and active methylene compounds.

在冰盐浴条件下，芳香族重氮盐与活泼亚甲基化合物反应，合成了六种新芳香族腙类衍生物。

31.One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group.

活性亚甲基上的一个氢原子是被环氧基所取代的。

34.The reactor and transfer line are rinsed with several small portions of methylene chloride.

反应器和输送管线被用少量二氯甲烷洗涤几次。

36.The affinity of cellular structures for basic dyes, such as methylene blue.

嗜碱性基本染料，如亚基兰的细胞结构的亲和性

38.methylene bromide

甲叉二溴

39.methylene azurin(e)

亚甲苯胺蓝;亚甲天青