查询词典 aliphatic

In black soil and meadow soil, the aliphatic structure of humin linked to iron and humin linked to clay are stronger than humic acid and fulvic acid.

结果表明：铁结合胡敏素、粘粒结合胡敏素与胡敏酸、富里酸具有相似的光谱特征，但存在明显差异。

Process for the preparation of phosphatidylserine of formula wherein R and R independently represent a saturated, mono-unsaturated or polyunsaturated acyl C10-C30, X=OH or OM where M=alkaline or alkaline earth metal, ammonium, alkylammonium including the transphosphatidylation reaction between phosphatidylcholine of the general formula wherein R and R and X have the above specified meanings, R=CH2-CH2- NH2 o CH2-CH2-N(CH3)3 and Serine in D, L or racemic form catalysed by the phospholipase D enzyme, characterised in that said reaction is carried out in a hydroalcoholic medium containing an aliphatic alcohol and in the presence of bivalent metal oxide.

本发明涉及制备式CH 2 OR 1 CHOR 2 CH 2 O-P-OCH 2 -CH(NH 2 )-COOHX的磷脂酰丝氨酸的方法，其中R 1 和R 2 独立地表示饱和的、单不饱和的和/或多不饱和的酰基C 10 -C 30 ，X＝OH或OM，其中M＝碱或碱土金属、铵、烷基铵，该方法包括通式CH 2 OR 1 CHOR 2 CH 2 O-P-OR 3 X的磷脂酰胆碱其中R 1 和R 2 以及X具有上述特别的含义，R 3 ＝CH 2 -CH 2 -NH 2 或CH 2 -CH 2 -N (CH 3 3 与D、L或外消旋形式的丝氨酸之间的转磷脂酰化反应，该反应是通过磷脂酶D酶催化的，其特征在于所述的反应是在包含脂族醇的含水醇介质中并且在二价金属氧化物的存在下进行的。

The esterification reactions between organic acids and the hydroxy groups of alumina powder surfaces change the polar hydroxylic surface structure that causes agglomeration of powders into an organic layer surface structure with a modified monomoleculer layer of aliphatic chains.

压制成型以其工艺简单、效率高、成本低、自动化程度高等优点而在传统陶瓷和高性能陶瓷制造中始终占有重要地位。影响坯体均匀性和致密度的因素很多，如粉体的粒度、形状、表面状态，粉体间的相互作用和流动性，成型加压制度等[1] 。

The different effects of N level on the contents of aliphatic and indolyl glucosinolate were found due to their different original amino acids.

由于脂肪族和吲哚族芥子油苷分别来源于不同的氨基酸，两者的含量随供N水平的变化趋势不同。

Higher lightintensity increased the content of aliphatic GS, however light supply has nosignificant effect on indolyl and aromatic GS, provided P supply was sufficient.

较强光照对脂肪族硫代葡萄糖苷的合成有促进作用；对吲哚族硫代葡萄糖苷和芳香族硫代葡萄糖苷则没有显著的影响。

We studied reactions of sulphoxide with aliphatic and aromatic 1,3-dicarbonyl compounds promoted by Cu2·H2O, 2,2′-biimidazole and iodobenzene diacetate, with the presence of K2CO3 as a base and DMSO a solvent.

我们以K2CO3作为碱，DMSO作为反应的溶剂，在二醋酸碘苯、Cu2·H2O、2，2′-联咪唑体系中，对脂肪族和芳香族的1，3-二羰基化合物和亚砜的反应进行了研究。

All five features contained in Hypo-AT1-7 and Hypo-ETA-1hydrogen-bond acceptor(A,hydrophobic aliphatic,negative ionizable,ring aromatic,and hydrophobic aromatic seem to be es...

通过比较叠合最优模型Hypo-AT1-7和Hypo-ETA-1，发现两种模型不仅总结了两种拮抗剂的必要结构特征，并具有共同之处。

Waterborne aliphatic polyurethane dispersion was synthesized by the reaction of epoxy resin with isophorone diisocyanate, dimethoxypropionic acid and polyester-diol.

以异佛尔酮二异氰酸酯、聚酯二元醇和二羟甲基丙酸作为主要原料合成了脂肪族水性聚氨酯分散体，并用环氧树脂对其进行了改性。

The new type semi-aromatic transparent nylon has been successfully developed for the first time using cheaper monomers,including linear chain aliphatic diamines,terephthalic acid,isophthalic acid and so on,by means of polybasic copolycondensation.

采用无侧基的脂肪族混合二元胺、对苯二甲酸、间苯二甲酸等为单体，通过多元无规共缩聚方法制备了半芳香透明尼龙，研究了SA型透明尼龙的静态热机械性能和动态力学性能。

EPIKURE Curing Agents – 3500 Series (see page 11)酮亚胺的特点 These ketimine curing agents give cure rates and performances similar to aliphatic amines, but offer the advantage of longer potlife.

EPIKURE固化剂- 3500系列（见第11页）酮亚胺的特点这些固化剂使ketimine治愈率和性能相似的脂肪胺，但提供的优势不再potlife 。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。