查询词典 fractions

Due to the finer size and little dense difference between Perovskite and Titanaugite, shaking table was employed as the main equipment of gravity separation. The ground products were screened four classifications. Some qualified tailings could be cast away in the coarser fractions, which could decrease disposal quantity of the next step-floatation.

对实际改性渣进行了选择性分离，基于相对较细的粒度和二者密度相差较小的事实，选择摇床为重选设备，并采用分级入选的方式，在较粗级别可抛弃部分合格尾矿，减少磨矿和下一步重选或浮选作业的处理量。

Briefly, glycopeptides generated from in-gel tryptic digestion were enriched by HILIC and divided into two fractions.

简而言之，首先使用HILIC柱料将N－连接糖肽从胰酶胶内消化的样品中分离出来，并且将其分成两份。

It can be seen that mercury contents in sulfides of the density fractions are different from each other in the same coal, which implied that mercury is distributed in sulfide unhomogeneously. The reasons of the unhomogeneity of mercury distribution in sulfide may be that mercury exist in sulfide in form of submicrometer size individual mineral such as cinnabar, and not in form of solid solution in pyrite, or that in coal, there are multi-stage and multi-origin sulfides among which the distribution and modes of mercury are different from each other.

这种差异性说明煤中黄铁矿中汞的分布是不均匀的，这表明：汞在黄铁矿中可能不是以固溶体形式存在，而可能是以细小的呈机械包裹物的独立矿物形式赋存于黄铁矿中；或者煤中存在多期、多成因的黄铁矿，不同期次成因的黄铁矿间汞的分布和赋存状态具有差异性。

In comparison with F-A and F-B, low molecular weight fucoidan fractions had little lower proportions of sulfate, but similar proportions of uronic acid.

结果表明，大分子和低硫低分子量的组分对02·一、·OH和HOCI有很好的清除作用，而高硫低分子量的组分的活性非常低。

Four fractions of OTPS was obtained by DEAE-52 column chromatography, and there were obvious differences not only in contents of neutral sugar, uronic acid and protein of OTPS, but also in inhibiting effects on hydroxyl radical

获得的乌龙茶多糖主要组分OTPS2-1是富含糖醛酸和少量蛋白质的三元糖复合物，相对重均分子质量为8.877 10^4，糖基由半乳糖、葡萄糖、阿拉伯糖、岩藻糖和鼠李糖组成，其摩尔比为

The combined acids , LHZZS,XDZZS and SLZZS, one of four fractions in montan resins from montan waxes from Liaohu, Xundian and Shulan brown coal respectively, were derived by CH 2N 2 to methyl esters and their chemical constituents and structural characteristic were studied on GC-MS.

结果显示，树脂结合酸均以正构烷酸为主要成份，其分布为C1 2 ～C2 8，高含量的正构烷酸集中在低碳数一端，C2 0 含量最高，其次为C1 6 ，而舒兰结合酸中，正构烷酸占绝对优势，且C1 6 为最高含量的化合物；去氢松香酸在每一个样品中含量较低，其它三环二萜酸，如松脂酸、三达松脂酸等异构体或立体异构体含量也非常低；具有五环三萜骨架的酸性物质，在潦浒、舒兰结合酸中比较丰富，其含量超过寻甸结合酸；在低碳数一端，存在着各种支链烷酸及苯甲酸、苯酚及取代物。

New crude oil sources that are yet to be developed will very likely consist of predominately heavy crudes with high resid fractions. This will assure that the asphalt supply continues to change and evolve in years to come.

然而，未来开发的新原油来源将很可能是最主要地包括带有树脂成分的重原油，这将确保沥青的供应能够在近几年内持续改变和演化。

The SPC-2S fraction with 30% EtOH were constituted epicatechin and epicatechin gallate ester ;The SPC-2S fraction with 50% EtOH contained epicatechin and dimeric procyanidins, another SPC-3S contained epicatechin ,dimeric procyanidins and trimeric procyanidns ;Dimeric procyanidins and trimeric procyanidns constitute SPC-5S fraction;monomer dimer trimer tetramer pentamer of procyanidins were the major fractions in 70% acetone elute solution.

1和 2.01：1，也以添加0.1%SPC酒样中两者的比例最为协调；对小曲酒中酸的影响表现为，添加SPC后有利于降低酒样中乙酸的含量，各酒样中乙酸的量随着SPC添加量高粱外种皮中原花青素及其对小曲白酒挥发性成分影响机制研究的增加而降低；对醛类的影响为，添加SPC可降低酒样中糠醛的含量，其中以添加 0.1%SPC酒样中含量最低，为对照组的39.3%，而4个酒样中乙醛含量则无明显差别；低SPC添加量有降低酒样中杂醇油含量的趋势。

In learning fractions, an integration of two concepts can be reasoned smoothly by analogy, i.e., size of unit × number of unit are analogized to denominator and numerator to integrate into a size.

在分数的学习上能顺利类推两个概念的整合。即把单位量×单位数类推至分数中分母与分子两概念整合代表一个量。

The results show that fractions of the hydrogenation residue are suitable for catalyzed cracking materials instead of cracking materials.

结果表明，加氢尾油的馏分不适宜作为裂解原料，可以作为催化裂化的原料。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。