相成
- 与 相成 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This paper reviews the mechanism of the phase transfer catalytic reaction according to the different compositions of catalytists, including quaternary ammonium salts,polyethylene glycols and grown ethers as well as application of the PTC in Organic synthesis , such as the reaction of,nucleophilic substitution,addition,condensation,oxidation-reduction and so on.
综述了在不同催化剂结构下所遵循的相转移催化反应机理,包括季铵盐类、聚乙二醇类及冠醚类催化机理,以及相转移催化在有机合成中的应用,如亲核取代反应、加成反应、缩合反应、氧化还原反应
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The results show that α-Al2O3 in the two kind s of coatings decreases while the γ-Al2O3 increases after spraying. Rutile-TiO2 transforms to brookite-TiO2 and the inners tress of coating was increased so as to aggravate the expansion of cracking. The pores are small but dense in the conventional coating while bigger but loose in the nano-structured coating. The pores in the nano-structured coating exist almost inside the partially melted region. The pores generated during spraying and the cracks generated during the course of thermal oxidization because of thermal stress are the direct reasons why coatings fail.
结果表明:2种粉末在喷涂之后,涂层中的α-A12O3均有所减少,生成了γ-Al2O3,金红石TiO2相转变成了板钛矿型TiO2相,增加了涂层的内应力,加剧了裂纹的扩展;常规微米涂层中的孔洞细小但密集,纳米涂层中的孔洞较大但不密集,且大部分的气孔都存在于部分熔化区的内部;涂层在喷涂过程中所生成的气孔以及热氧化过程中由于热应力而产生的裂纹是造成涂层失效的直接原因。
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"Double images", literarily,"double" means "in pairs";"image" means "appearance","figure" and "looking", and it also has the meaning of "examination","observation" and "the result of comparison".
&双相&,在字面上的意义,&双&具有成对的意思;&相&,既有容貌、外形、模样之意义,又有审视、察看、两者共同说明比较之结果的意义。
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The RE aqueous phase was first separated as an independent solid phase from the earthy black weathered mineral by reducingextracting method. It is a new combining state of rare earth elements in natural mineral.
用还原提取法首次将稀土水成相作为一个独立的固相分离出来,这是稀土元素在自然界矿物中的一种新的赋存形态。
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For bulk cylinder-forming diblock copolymers, a series of novel structures such as helices and stacked toroids are identified which cannot form in bulk block copolymers.
对体相形成柱状相的双嵌段共聚物,在不同孔径的孔内我们观察到了一系列体相不存在的螺旋和层叠圆环等新奇结构。
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Objective To establish HPLC-UV method for determination of glycyrrhizin acid in compound nasal spray of glycyrrhizin and flower flos magnoliae,the chief active ingredient of formulation,glycyrrhizin acid,and to observethe therapeutic effect of this formulation on guinea pig's hypersensitive rhinitis.Methods A compound nasal spray formulation was prepared using extracts of glycyrrhizin and measured by HPLC-UV method.Mobile phase conˉsisted of methanol,0.2mol/L ammonium acetate and glacial acetic acid(67:33:1,v/v),analytical column was Zorbax ODS C 18 and wavelength250nm.
目的 建立测定复方甘草和辛夷喷雾剂含量的方法并观察该制剂对豚鼠超敏性鼻炎的疗效方法以甘草提取的甘草甜素和辛夷花蒸馏提取液主药制备成鼻用喷雾剂,用反相高效液相色谱法测定制剂中甘草酸含量,检测波长为250nm,Zorbax ODS C 18 分析柱,流动相为甲醇:0.2mol/L醋酸铵:冰醋酸(67:33:1)。
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It also suggested that the climate and environment in the area are characterized by changeability, sensitivity, instability, its general changes are the positive process of desertification correspondingly to the dry-cold steppe or desert steppe and desert, while the reverse process correspondingly to warm semi-humid forest steppe and temperate-humid shrub steppe.
进一步证实了古土壤S〓发育和河湖相沉积的萨拉乌苏组堆积时为温暖半湿润的森林或森林草原环境,全新世的砂质古土壤或湖沼相沉积时为温湿灌丛草原或疏林草原环境,黄土沉积时为半干旱干草原环境,风成砂沉积时为干旱荒漠草原甚至荒漠环境。
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The sharp drop in the resistance at T\-m has been associated with the first order melting transition.
1引 言在高温超导体相图中由于热涨落和强的各向异性的影响,存在一个磁通液相,在干净的样品中这个液相沿着融化曲线Tm经过一级相变转变成涡漩线&晶体&。
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The invention adopts the technical proposal that the nucleation and process of growth of the molecular sieve are controlled properly by adding crystal seeds containing zeolite beta precursors in the synthetic process of the intergrowth molecular sieve for producing the intergrowth molecular sieve, wherein the proportion of intergrowth phases is adjustable, the synthesized intergrowth molecular sieve adopts the compositions including the following mole relation: nSiO2:Al2O3, where n is between 4 and 400 in the formula, and the method is characterized in that the intergrowth molecular sieve has more than two phases and an XRD diffraction pattern thereof has the d-space maximum value at the lengths of 13.58 -0.1, 11.50 -0.04, 11.21 -0.1, 10.04 -0.1, 9.47 -0.1, 9.09 -0.1, 7.56 -0.1, 6.6 -0.1, 4.5 -0.1, 4.16 -0.05, 3.98 -0.05, 3.86 -0.05, 3.76 -0.04, 3.53 -0.04 and 3.38 -0.02 angstroms, thereby solving the problems properly.
本发明通过采用在共生分子筛合成过程中,加入含β沸石前驱体的晶种,控制好分子筛的成核和生长过程,制备出了一种共生分子筛,其中共生物相比例可调,合成的共生分子筛采用包括以下摩尔关系的组成:nSiO 2 ∶Al 2 O 3 ,式中n=4~400,其特征在于所述共生分子筛具有两种以上的物相,其XRD衍射图谱在13.58±0.1,11.50±0.04,11.21±0.1,10.04±0.1,9.47±0.1,9.09±0.1,7.56±0.1,6.6±0.1,4.5±0.1,4.16±0.05,3.98±0.05,3.86±0.05,3.76±0.04,3.53±0.04,3.38±0.02埃处有d-间距最大值的技术方案,较好地解决了上述问题。
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The invention adopts the technical proposal that the nucleation and process of growth of the molecular sieve are controlled properly by adding crystal seeds containing MCM-22 precursors in the synthetic process of the three-phase intergrowth molecular sieve for producing the three-phase intergrowth molecular sieve, wherein the proportion of intergrowth phases is adjustable, and the synthesized three-phase intergrowth molecular sieve includes compositions having the following mole relation: nSiO2:Al2O3, where n is between 4 and 400 in the formula, wherein the three-phase intergrowth molecular sieve has more than two phases and an XRD diffraction pattern thereof has the d-space maximum value at the lengths of 13.58+-0.1, 12.35+-0.1, 11.21+-0.1, 10.04+-0.1, 9.09+-0.1, 8.83+-0.1, 6.6+-0.1, 6.17+-0.1, 4.5+-0.1, 4.09+-0.05, 3.98+-0.05, 3.86+-0.05, 3.76+-0.04, 3.64+-0.04, 3.47+-0.05, 3.38+-0.02, 3.29+-0.04, 3.19+-0.05 and 2.88+-0.1 angstroms, thereby solving the problems properly.
本发明通过采用在三相共生分子筛合成过程中,加入含MCM-22前驱体的晶种,控制好分子筛的成核和生长过程,制备出了一种三相共生分子筛,其中共生物相比例可调,合成的三相共生分子筛包括以下摩尔关系的组成:nSiO2∶Al2O3,式中n=4~400,其中所述三相共生分子筛具有两种以上的物相,其XRD衍射图谱在13.58±0.1,12.35±0.1,11.21±0.1,10.04±0.1,9.09±0.1,8.83±0.1,6.6±0.1,6.17±0.1,4.5±0.1,4.09±0.05,3.98±0.05,3.86±0.05,3.76±0.04,3.64±0.04,3.47±0.05,3.38±0.02,3.29±0.04,3.19±0.05,2.88±0.1埃处有d-间距最大值的技术方案,较好地解决了上述问题。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。