alkyl
美 ['ælkɪl] 
英 ['ælkɪl]
英汉解释
英英解释
例句
Amines are basic nitrogenous compounds in which one, two or three atoms of hydrogen in ammonia are replaced by alkyl or aryl groups.
胺是含氧的化合物，是由一个、两个或三个氢原子与氨以烃基或芳基结合的基团。
Elimination of an alkyl chain substituted on an aromatic ring results in the appearance of free radicals .
在一芳香环上一个取代烷链的消失，结果出现自由基。
Filter alkyl urea by special foam with refined activated carbon and made with a high degree of absorption performance.
过滤片由特殊脲烷泡沫塑料配合精制活性碳而制成，具高度吸收效能。
Conclusion: S-alkyl-L-cysteine as the binding ligand can be applied to affinity chromatography for alliinase purification.
结论：以S-烷基-L-半胱氨酸为配基制得适合于蒜氨酸酶分离纯化的亲和载体。
Cannabinol and its tetrahydro derivatives ; their 3 - alkyl homologues ; any ester or ether of any substance falling within this item.
大麻酚及其四氢衍生物；它们的3-烷基同系物；任何属此项范围内的物质的酯类及醚类。
The general answer to this problem is to avoid alkyl halides .
解决这一问题的一般办法是避免使用烷基卤。
The results suggest that an increase in alkyl group chain substituted on the cation ring correspond with an increase in toxicity.
结果表明，随着离子液体阳离子咪唑环上烷基取代基的增大，离子液体对酵母细胞的毒性逐渐增大。
In this thesis , alkyl trimethylammonium bromides(CTAB) and carboxymethyl cellulose(CMC)form a dual strengthening system.
论文研究以烷基三甲基溴化铵和羧甲基纤维素为增强剂，组成二元增强系统。
The addition of alkyl groups to PAHs enhances the carcinogenic potential of these compounds.
烷烃加在多环芳烃上的系列会提高这些化合物的致癌作用。
He suggests that the alkyl-methoxypyrazine molecules may be sticking to the aluminium and thus being segregated from the wine.
他解释道化合物分子可能吸附在铝箔上从而从酒中隔离了。
The better matching the alkyl side chain of PA with the carbon number of wax in crude oils, the better depressive effect of PA.
PA烷基侧链碳数与原油中石蜡碳数越匹配，降凝剂分子与石蜡的作用越强，降凝效果也越理想。
The alkyl indican can be synthesized by starch with low cost and free pollution which can agree with the de mands of modern production.
以淀粉为主要原料合成烷基糖苷，不仅成本低，而且无污染，符合现代环境保护的要求。
Glucosidase was immobilized by microencapsulation using interfacial crosslinking, and employed in the biosynthesis of alkyl glucoside.
用相际交联反应形成微胶囊的方法固定糖甙酶，并用此固定酶催化合成了烷基葡萄糖甙。
Preferred non-aqueous solvents include alkyl alcohols or ketones having less than about six carbon atoms.
首选非水溶剂包括烷基醇，酮则少于六个碳原子。
The fluorescence analytical results indicated that the alkyl structures of Rh B esters hardly affected their fluorescence behaviors .
荧光性能分析结果表明，烷基罗丹明B酯的烷基结构对其荧光强度、最大吸收和发射波长影响不大。
With increasing number of carbon atom of alkyl group in the ionic liquid the extraction efficiency of lithium obviously increased.
锂的萃取率随离子液体中烷基碳原子数的增加而增加。
Several etherification processes and catalysts for the synthesis of tertiary alkyl others from alcohols and iso olefins are reviewed.
对几种以异构烯烃和醇的醚化工艺作了综述。
separating phosphates sedimentation from sterically hindered phenols alkyl ester compound.
以及将沉淀的磷酸盐与位阻酚烷基酯化合物分离。
Alkyl-bonded sorbents have been mainly studied for SPE in inorganic analysis; our attention in this paper will be focused on such materials.
烷基吸附剂应用于无机分析中的固相萃取已经被主要研究，本文将集中讨论这类材料。
Polyether polyols are oligomers alkyl side, the main chain of the alkyl ether bond by the link.
聚醚多元醇是端烃基的齐聚物，主链上的烃基由醚键连结。
Thus varying the nature of R from primary to secondary to tertiary alkyl results in increasing yields of the hydroxy ethers.
当R按伯、仲、叔烷的顺序递变，则所得羟基醚的产率就随之而增高。
It was noted that alkyl alcohol and anisole had greater gelation ability ternary alcohol, cyclic alcohol and ketone.
它们对脂肪醇和苯甲醚的凝胶性能显著优于环状醇、芳香醇和酮等；
The alkyl-ammonium adsorption amount in the montmorillonite is the determinate factor which influences the modification effect.
烷基铵在蒙脱石层间的吸附量是影响改性效果的决定因素。
The fire retardant can be chosen from alkyl sodium sulfonate, boric acid and the like.
上述阻燃剂可选用烷基磺酸钠和硼酸等。
This artiCle will recommend the synthetic methods of amino alkyl ferrocene derivatives from different starting materials.
本文介绍从不同起始原料出发，合成胺烷基二茂铁衍生物的方法。
High alkyl sulfate, non-ionic surfactant, sodium metasilicate, calcium carbonate, sodium carbonate.
高分子烷基硫酸盐，非离子表面活性剂，硅酸钠，碳酸钙，碳酸钠。
Preferred cationic sequestrants are quaternary nitrogen compounds including medium or long chain alkyl groups.
首选季铵盐阳离子螯合剂的氮化合物，包括中型或长链烷基。
The method can synthesize paraquat derivatives containing different alkyl substituents by changing the type of ethanol.
该方法由于可以通过改变醇的种类，合成出含不同烷基取代基的百草枯衍生物。
The intermediate for preparing the prasugrel has a structural format as the right, wherein R stands for alkyl or aryl.
本发明所述的用于制备普拉格雷的中间体结构式如右：其中R代表烷基或芳基。
Moreover, the length of alkyl groups in dialkylurea lead to different morphology of the aggregates.
烷基链长度不同，形成的纤维状聚集体的形态也不同。
Nowadays the world authorities deal with the monitoring of multiple fluorine alkyl phosphate increased interest in.
如今天下各国当局对付监测多氟烷基磷酸酯的兴趣不断增加。
Firstly we studied the physical structures of a regioregular poly(thiophene) modified by alkyl groups.
一方面是研究烷基改性的头-尾连接聚噻吩的物理结构。
The cumulative risk of various alkyl- or aryl-substituted sulfonic acid ester impurities should be taken into account.
需要考虑多种烷基或芳基磺酸酯杂质的累积风险。
Influence in alkyl group of alkyl chloroacetate on the catalytic activity was also discussed.
探讨了氯乙酸烷基酯中烷基对反应活性的影响。
Oxidizing sidechain alkyl of benzene ring is one of the most important reactions in the organic synthesis.
苯环侧链氧化是有机合成反应中的重要反应类型之一。
Synthesis and purification of long chain alkyl acrylate as intermediate of pour point depressant were introduced .
介绍了降凝剂中间体丙烯酸高碳醇酯的合成和产品分离提纯方法。
We also researched the extraction-oxidation desulfurization with N-alkyl-pyridinium-based ionic liquids.
同时还研究了吡啶离子液体萃取-氧化汽油脱硫的情况。
SURFACE ACTIVE AGENTS. FATTY ALKYL DIMETHYL AMINE OXIDES. DETERMINATION OF THE AMINE OXIDE CONTENT. (EUROPEAN STANDARD EN 1791).
表面活性剂.脂肪族烷基二甲醇氧化胺.氧化胺含量的测定（欧洲标准EN1791）
Conclusion Introducing the methyl group or a low alkyl group resulting in the high selectivity and increase of its activity.
结论甲基或低级烷基的引入导致了高选择性，使其活性增大。
The application of alkyl dithiophosphate accelerator in NR based tread compound was investigated.
研究烷基二硫代磷酸盐促进剂在NR胎面胶中的应用。
Dendrimer-bonded silica gel is effective to separate homologous compounds of alcohol, alkyl-substituted benzene, methacrylic acid esters.
对于醇类，烷基取代苯，丙烯酸酯同系物可以进行很好的分离。
