多元的

Those processed sebastan plum cordia in maturity level of 8 to 9 showed no austerity, but due to their higher activity on polyphenol oxidase, immediate processing or dipping in 3％ of salt water was a necessary step after picking up to avoid their browning reaction.

但因成熟度8~9分的破布子其多元酚氧化活性较大，因此采收后须立即加工处理或浸泡在3％食盐水中，以避免发生褐变反应。

Fig.6.Schematic of the formation of cyclopentanone from the polyester-polyol via primary scission of the ester bond, followed by hydrogen transfer with formation of cyclic chain ends which eliminate cyclopentanone and carbon dioxide

从表2中可以看出，低温、氮气条件下，PU-1分解主要可辨别的组分为1，4丁二醇，（Fig.5a）中m/z71不能够辨别，（Fig.5b）显示了m/z71离子谱图，这些峰一定是聚合物多元醇热降解产生的低聚物。

A series of polyether based polyurethaneurea aqueous dispersions with well-defined hard segments were prepared by fractional steps with polyether polyol, 4,4'-diphenylmethane diisocyanate, dimethylolpropionic acid, 1,4-butanediol, isophorone diisocyanate and ethylenediamine.

以二苯基甲烷二异氰酸酯、二羟甲基丙酸、1，4-丁二醇、异佛尔酮二异氰酸酯和乙二胺为硬段，聚醚多元醇为软段，通过分子设计采用分步合成法，制备了具有规整硬段和良好分散性能的聚醚型聚氨酯脲水分散液。

A series of polyether based polyurethaneurea aqueous dispersions with well-defined hard segment s were prepared by fractional steps with polyether polyol, 4,4′-diphenylmethane diisocyanate,dimethylolpropionic acid,1,4-butanediol,isophorone diisocyanate and ethylenediamine.

以二苯基甲烷二异氰酸酯、二羟甲基丙酸、1，4-丁二醇、异佛尔酮二异氰酸酯和乙二胺为硬段，聚醚多元醇为软段，通过分子设计采用分步合成法，制备了具有规整硬段和良好分散性能的聚醚型聚氨酯脲水分散液。

A reduction for the risk of COX-2-positie tumors was found with increasing duration of aspirin use (multiariate relatie risk 0.59), becoming eident after 10 years, the researchers said.

研究发现增加期服用阿斯匹林时间可以减少肿瘤中COX-2阳性的风险(多元相对危险度0.59)，10年后越来越明显，研究人员说。

A series of ZnO-V2O5 based varistor ceramics, which have homogenous microstructure, high relative density of more than 98% and an optimum non-ohmic coefficient α of more than 50, were fabricated at 950℃ by traditional electroceramic fabrication process.

在传统工艺基础上，对V2O5/Sb2O3混合粉体先进行热处理，然后以热处理产物为主要掺杂剂，在950℃合成了显微结构均匀、相对密度98%以上、α大于50的ZnVSb系多元压敏电阻陶瓷材料。

Polyester polyol which was used for polyurethane hot melt adhesives was synthesized by the condensation polymerization of adipic acid and ethanediol, butanediol, hexanediol.

以己二酸、乙二醇、丁二醇、己二醇为原料进行酯化、缩聚反应，以钛酸丁酯为催化剂，采用阶梯式升温方式，合成了聚氨酯热熔胶用已二酸系聚酯多元醇；考察了醇酸摩尔比、催化剂种类和用量以及反应条件对酯化、缩聚反应的影响。

Read card inchoately allegedly implement sell the earliest 600 multivariate.

据说早期的读卡器最早卖到600多元一台。

Average net income per capita, average area of farm—land per capita, irrigation-well density, irrigable land scale, natural growth rate of population, distance to city or market, and farmland quantity are the driving factors.

研究表明，土地质量群因子、经济区位群因子和人口压力群因子是其驱动因子，在此基础上，建立了曲周县土地利用程度驱动因子的多元线性回归模型。

Indeed, Mr Ka daughter monthly income is more than 1,900 yuan.

实际上，贾先生女儿的月收入是1900多元。

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。