环

It deliberated that magnesium sulphate and epichlorohydrin affecting on synthetization of starch xanthate, mass ratio of synthetic starch xanthate and Magnesium sulphate was 8: 1, Mass ratio of synthetic starch xanthate and epichlorohydrin was 10 : 1, Magnesium sulphate and epichlorohydrin didn't affect sulphonating extent of synthetic starch xanthate, but did enhance cross extent and nature of insoluble.

研究了MgSO_4和环氧氯丙烷对DX合成的影响，得出淀粉和MgSO_4的重量比为8：1，淀粉和环氧氯丙烷的重量比为10：1，MgSO_4和环氧氯丙烷对黄原酸化程度没有影响，但能增强交联程度和不溶性。

It deliberated that magnesium sulphate and epichlorohydrin affecting on synthetization of starch xanthate, mass ratio of synthetic starch xanthate and Magnesium sulphate was 8: 1, Mass ratio of synthetic starch xanthate and epichlorohydrin was 10 : 1, Magnesium sulphate and epichlorohydrin didnt affect sulphonating extent of synthetic starch xanthate, but did enhance cross extent and nature of insoluble.

研究了MgSO_4和环氧氯丙烷对DX合成的影响，得出淀粉和MgSO_4的重量比为8：1，淀粉和环氧氯丙烷的重量比为10：1，MgSO_4和环氧氯丙烷对黄原酸化程度没有影响，但能增强交联程度和不溶性。

Comparisons between the experimental and computational IR spectra clarify the difference of the open- and closed-ring isomers, which indicate that it is possible to identify the tautomeric form of this diarylethene derivative using a highly selective infrared absorption band and the strong absorption at 1 705 cm-1 of the ring-closed isomer can be used in non-destructive readout by IR light.

通过红外吸收光谱表征了该光致变色二芳基乙烯衍生物在溶液中开、关环前后结构的变化，并采用理论化学计算方法研究了该化合物开、关环异构体的红外吸收振动特性。光致变色异构化过程可以通过红外吸收光谱的变化而识别。关环异构体在1 705 cm

The invention provides a method for preparing an epoxy sheet-like mold plastic, which comprises the following steps: thickening the mixed epoxide resin system with diisocyanate compound; strengthening the chopped strand; making the tectorial into non-stick hand and shear epoxy sheet-like mold plastic, that is, preparing the epoxide resin paste and the epoxy sheet-like mold plastic; ripening.

本发明提供的制备环氧片状模塑料的方法是：采用二元异氰酸酯化合物对混合环氧树脂体系增稠，短切纤维增强，覆膜制备成不粘手可剪切的环氧片状模塑料；该方法包括环氧树脂糊的制备、环氧片状模塑料的制备和熟化步骤。

Replacing DETA with PIP, a new three dimensional compound 3 issynthesized and the 3D anionic framework of compound 3 is constructed from twodistinct motifs, a one-dimensional tancoite chain and a single 4-ring (S4R) unit,which contains four intersecting channels running throughout the structure as 8,12-member ring channels along to the a axis and 12-member ring channels along theb and c axis, respectively.

其中，以乙二胺为模板剂的亚磷酸铟微孔化合物具有无限的共边4员环一维链状结构；以哌嗪和1，6-己二胺为模板剂合成出的亚磷酸铟化合物分别具有二维交叉8员环孔道和16员环孔道的三维开放骨架结构。

The mechanism of thiocarbonyl compounds with thiourea function group has been proposed according to the photoreaction products.5. Total of one heterocyclothione intermidate and four heterocyclothione compounds have been synthesized and structurally characterized.

根据所得到的产物对具有硫脲基团的硫羰基化合物的光反应机理进行合理的推测。5、合成与表征了1个环硫酮中间体和4个杂环硫酮类化合物，摸索出合成杂环硫酮中间体较佳反应条件。

Procedure for the three-ring servo system PID control algorithm simulation, which tricyclic ring for position, velocity and current loop Central.

此程序为三环伺服系统的PID控制算法仿真，其中三环为位置环、速度环和电流环。

The results showed that the suitable condition for the reaction are as follows: benzaldehyde/1, 2-propylene molar ratio is 1:1.4, the mount of potassium dodecatungstocobaltate trihydrate (K5CoW12O403H2O) is 0.5g, the volume of cyclohexane is 9 mL, and reaction time is 70 min.

实验结果表明，杂多化合物K5CoW12O403H2O是合成环己酮l， 2-丙二醇缩酮的良好催化剂，在酮醇物质的量比为l：1.4、催化剂质量为0.5g、带水剂环己烷体积为9mL、反应时间为70min的最佳条件下，环己酮l， 2-丙二醇缩酮的收率最高可达94.2%。

PTMC and PDTC can be prepared by ring-opening homopolymerizations of trimethylene carbonate and 2,2-dimethyltrimethylene carbonate respectively.

PTMC、PDTC主要由三亚甲基环碳酸酯及2，2-二甲基三亚甲基环碳酸酯开环均聚合制备。

After first crushed by impact force of hammer rings, the materiel is then pressed, sheared and ground between crushing plate and ringhammers to the required granular product which flows off the screen, and those uncrushed such s tramp iron, wood pieces, stone etc will be brought into the tramp iron trap.

工作原理环锤式破碎机利用旋转的转子带动环锤对物料进行冲击破碎，被冲击后的物料又在环锤和破碎板、筛板之间受到压缩、剪切、碾磨作用，使物料达到所需的粒度，被破碎后的物料经筛板的栅孔落下，不能被破碎的铁块、木块、石块等经拨料板拨进除铁室。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。