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In addition nC〓, nC〓, two isomers of C〓 sterene and three isomers of C〓 isoprenoid hydrocarbons were also identified from aliphatic fraction of pyrolyzed product at 200℃. After pyrolyzed at 300℃, the main aliphatic hydrocarbons were normal alkanes ranged from C〓 to C〓, with C〓 as the main peak and C〓 as the second main peak. Meanwhile, pristane, phytane and C〓 sterane were also detected. In the pyrolysates at 400℃ and 500℃, the content of saturated hydrocarbons decreased, the range of normal alkanes distribution became narrow and the main peak was nC〓. Low concentration of C〓-C〓 steranes was detected and the content of C〓-C〓 increased more.

在200℃热模拟产物饱和烃馏分中除检测出两种长链烯烃外,还检测到正十九碳单烯烃、正三十五碳双烯烃、两个碳二十八甾烯的同分异构体和三个C〓类异戊二烯烷烃化合物同分异构体。300℃模拟产物饱和烃主要为正烷烃,正烷烃的碳数分布范围为C〓-C〓,以C〓为主峰、C〓为次主峰;另外,样品中还检出姥鲛烷、植烷和C〓甾烷等化合物。400和500℃热模拟产物中的饱和烃含量下降,正烷烃系列碳数分布范围变窄,主峰碳后移至C〓,检测到低浓度的C〓-C〓甾烷系列化合物,另外,C〓-C〓藿烷系列化合物含量进一步增加。

The effect of post-curing temperature on the elastic module ofcuring product was positive but the temperature should not be too high.

随着PHQEP加入量的增加,固化产物的弹性模量呈下降趋势;随着后固化温度的升高,固化产物的弹性模量升高,但是过高的后固化温度会严重损害产物的力学性能。

Keep product in 4℃, radiochemical purity at 1 d, 2 d, 3 d, 5 d, 7d, 2 w, 3 w, 4 w was detected by TCA precipitation.

产物保存于4℃,于1,2,3,5,7天,2,3,4周时间点检测产物的放射性化学纯度,评价产物的体外稳定性。

In Chapter 5,the pyrolysis of substituted six-membered ring model compound 4-methyl pyridine has been investigated.Instead of detail theoretical analysis of the reaction mechanism,the general results have been proposed from the products distribution and the combination of the pyrolysis investigation of its analogous pyridine.The major products are H_2,C_2H_2,C_4H_2,C_3H_3N and HCN,here HCN is not a primary initial product at low extent of decomposition.The mole fraction profiles of products have been obtained from the near threshold ionization.The pyrolysis of 4-methyl pyridine is initiated from the methyl abstraction and hydrogen abstraction procedures which are associated with the understanding of the soot formation and the NOX precursor correspondingly.

主要产物为H_2,C_2H_2,C_4H_2,C_3H_3N和HCN,其中HCN为非低温时的热解产物;通过近阈值电离并导出物种随温度变化的摩尔分数曲线,更详细地定量地描述了产物随温度的变化。4-甲基吡啶热解主要从母体脱甲基和脱氢两个初始反应出发,一种趋势是形成大质量数的苯并或杂环的多环化合物,有助于了解炭黑形成过程中的复杂化学过程;另一趋势是开环生成小的碳氢和腈类物质,实验得出的含氮物质的种类及随温度变化有助于了解NO_x的前驱物质的形成及其变化规律。

The change of average size of products along the radius at the exist of reactor has also been calculated. The calculated results indicate that the residence time is longer, the average size of products is larger, but the distribution of size is narrower, tending to self-preserving distribution; when the concentrations of reactants increase, the average size of products becomes larger, but the distribution of size becomes narrower; the gradients of reactants are greater, the average size is larger; the increasing of reacting temperature will cause the size of product to be larger under same residence time. The average size of product at the exist of reactor varies along the radius, has a maxim value.

模型计算结果表明,产物粒度随停留时间的增加而增大,但粒度分布变窄,趋向自保分布;产物粒度随反应物进料浓度的增加而增大,粒度分布随进料浓度的增大而减小;反应器中反应物浓度梯度较大(相当于化学反应为快反应)时,相同停留时间下所得到的产物平均粒度增加;反应温度的增加,粒子平均粒径增加,粒度分布变窄;反应器出口处粒子平均粒径,随着与对称轴的距离的增加,有一极大值,先增加,后减小。

With western blot analysis and DNA polymerase chain reaction-single strand conformation polymorphism assay,protein product of Rb gene and mutation in exon 5~8 of P_(53) gene were examined in 17 cases of human testicular seminoma.

采用Western印迹和DNA聚合酶链反应-单股构造多态性分析法对17例人睾丸精原细胞瘤组织标本的抗癌基因Rb表达的蛋白产物和P_(53)基因外显子5~8的突变进行检测,发现有3例标本的Rb基因表达的蛋白产物缺失,有4例标本的P_(53)基因有点突变,对照的正常人睾丸组织和视网膜组织均呈Rb基因蛋白产物表达阳性,对照的正常人睾丸组织中未发现P_(53)基因突变。

The calculated results show that the CaI vibrational population peaks moved to low value.The calculated cross-section changed slightness duo to isotope effect. The angle product distributions tend to backward scattering also and isotope effect is not observably. Thecalculated

由于同位素效应的影响,产物Cal的振动态分布向低振动态转移;反应体系的散射截面在低碰撞能和高碰撞能处有些微变化;受到反应物质量因子变化的影响,转动取向值减少,产物转达取向强烈;产物的角分布同位素效应不明显。

Being combining with products distribution in styrene oxidation, we propose the styrene epoxidation carry out with Ti metallacyclo intermediates, And at the same time Ti-ZSM-5 have properties both catalytic epoxidation and acid-catalysis, namely the skeletal Ti can catalyze styrene epoxidation to styrene oxide and the skeletal Ti and Al can provide Lewis acid site to cause the rearrangement of styrene oxide to phenylacetaldehyde rapidly, the solvolysis to glycols and the cleavage of C=C double bond. Ti-ZSM-5 can also provide Bronsted acid site simultaneously, which is also catalytic center for the solvolysis to glycols.

同时结合Ti-ZSM-5催化选择性氧化苯乙烯反应的产物分布结果,提出苯乙烯环氧化反应可能是通过金属有机环机理进行;Ti-ZSM-5同时具有催化环氧化和酸催化两种功能,其骨架钛可催化苯乙烯环氧化生成环氧苯乙烷,而骨架钛和骨架铝等可提供Lewis酸位使环氧苯乙烷迅速发生重排生成苯乙醛从而使其成为反应的主要产物,同时还可发生加成以及碳碳键的裂解等副反应:Ti-ZSM-5也提供Bronsted酸位,它也是生成加成产物的活性中心。

Work was also carried out. From numerous facts of ourprevious work, it might be seen that the stereoselectivity of aziridination viasulfonium ylides depends upon the sulfonium salts and C=X compounds. The moreactive the sulfonium ylide and C=X compound are, the more cis product is generated.Whereas, trans product will be major if the activity of the sulfonium ylide and C=Xcompound is low.

通过对以往工作的总结,我们发现,在经由硫叶立德途径的小环化反应中有一个经验规律:产物的立体选择性与所用的锍盐和C=X化合物有关,即锍盐和C=X化合物的活性增强,有利于形成顺式产物,反之,锍盐和C=X化合物的活性降低,有利于反式产物的形成。

The concentrations of CO2, CF4, thionyl sulfide (SOF2), sulfuryl fluoride (SO2F2), disulfuryl decafluoride (S2OF10), sulfur dioxide (SO2) and sulfureted hydrogen (H2S) were in partial normal distribution. The concentrations of CO2, CF4, SOF2, SO2F2, S2OF10 were all below 0.1%; the concentrations of SO2 were below 3μL/L; the concentrations of H2S were below 1μL/L. The SF6 byproducts concentrations in 500kV GIS were lower than those in 220kV GIS. The SF6 byproducts concentrations were lower in GIS that have been operating longer. The SF6 byproducts concentrations were significantly different in equipment from different manufacturers.

结果显 示:SF6 GIS 中CO2、CF4、氟化亚硫酰(SOF2)、氟化硫酰(SO2F2)、十氟化二硫酰(S2OF10)、二氧化硫(SO2)和硫化氢(H2S)都成偏正态分布,其中,CO2、CF4、SOF2、 SO2F2、S2OF10 的含量均小于0.1%,SO2 的含量均低于3μL/L,H2S 的含量均低于1μL/L.500kV GIS 设备中SF6 分解产物含量低于220kV GIS 设备;运行时间越长,设备中SF6 分解产物的含量越高;不同设备厂商的GIS 中 SF6 分解产物含量有显著性区别。

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