二水合物

As a result, atmospheric decomposition of natural gas hydrate under different temperatures (from -5 ℃ to -25 ℃) is studied through forming natural gas hydrate by using the solution of 300 mg/L sodium codicil sulfate and hydrate reactor with the compaction function is designed and made in which atmospheric decomposition under different temperatures （-10 ℃,-15 ℃ and -20 ℃） is studied after compacted at 10 MPa.

为此，用300 mg/L的十二烷基硫酸钠溶液生成天然气水合物，试验研究天然气水合物在不同温度（-5~-25 ℃）下的常压分解；设计制造了带压实功能的水合物反应釜，试验研究用10 MPa压力对水合物进行压实后在不同温度（-10 ℃、-15 ℃和-20 ℃）下的常压分解。

Results and Discussion Flavin 2 was synthesized from 3,4-diaminobenzoic acid (3) and alloxane monohydrate (4) in good yield according to standard procedures (Scheme 1).9 The first step afforded flavin 5 in quantitative yield, in 1:1 ratio of the 7- and 8-hydroxycarbonyl regioisomers, and was subsequently methylated by methyl iodide to form flavin 6 in 86% yield, in a 3:2 ratio of the 7- and 8-regioisomers.

结果与讨论黄素二是合成3，4 -二氨基安息香的酸（ 3 ）和氧嘧啶水合物（ 4 ）在良好的收益率根据标准程序（计划1） 0.9的第一步，给予黄素五，在定量产量，在1：1的比例， 7 -8 -羟基羰基 regioisomers ，并随后甲基甲基碘形成黄素6月在86 ％的产量，在一个3：2的比例， 7 -和8 regioisomers 。

The result makes clear, the hydrogenous key key of hydrate brilliant acupuncture point can be strong at water element 2 get together body and the hydrogenous key key in putting crystal lattice on the ice can.

结果表明，水合物晶穴的氢键键能强于水分子二聚体和冰晶格中的氢键键能。

The results showed that the dithione R is the most stable tautomer of all the tautomers in the form of isolated or hydrated isomers.

计算结果表明， 2，6-二巯基嘌呤无论是孤立分子还是一水合物，其二硫酮式R是最稳定异构体。

The DFT (B3LYP/6-31 + G) method was used to study the relative stabilities and probable proton transfer in isolated and monohydrated 2,4-dithiothymine molecules in gas phase. The effects of water on relative stabilities and the rate of the proton transfer were analysed. The results indicate that only one tautomer for 2,4-dithiothymine can exist in gas phase.

采用密度泛函方法在B3LYP/6-31+G水平上研究了2，4-二硫基胸腺嘧啶孤立分子和水合物的异构体的相对稳定性和可能的质子迁移反应，分析了水分子的参与对 2，4-二硫基胸腺嘧啶异构体的相对稳定性和质子迁移速率的影响。

Of Paris. Thus starting from dihydrate, first the water is removed to make plaster, then it is added again to form a building material, which has been known to mankind for thousands of years.

因此，从二水合物开始，水分先是被去掉以作成石膏，然后是再添加以制作建筑材料，这一过程为人类所知已有上千年。

In this paper, the glyoxal structure both in reagent and in bulking solution were detected by infrared spectro and mass spectra, the result shows that there is no aldehyde group but only hydrate existing in both solutions. Besides, the mechanism of the ac-tion between glyoxal and waterlogged wood is discussed and some problems like how to prevent the bulk-ing solution from acidification are also mentioned.

此外，还运用红外光谱和质谱法测定了试剂乙二醛和加固液的结构，详细讨论了乙二酯在试剂和加固液中官能团的存在形式和聚合状态的细微变化，指出在二种溶液中并不存在醛基，乙二醛仅以水合物的形式存在并讨论了乙二醛与饱水古木的作用机理，提出用醇溶液能有效控制乙二醛使用中易返酸等问题。

The compositions can also contain microcrystalline cellulose, croscarmellose sodium, anhydrous lactose, magnesium stearate, micronized edetate calcium disodium hydrous, and micronized sodium thiosulfate pentahydrate.

所述组合物也可以包含微晶纤维素、交联羧甲纤维素钠、无水乳糖、硬脂酸镁、微粒化的含水乙二胺四乙酸钙二钠和微粒化的硫代硫酸钠五水合物。

Polyethylene glycol ethers of alkyl alcohols having the general formula CH3(CH2)xCH2(OCH2CH2)nOH wherein x is 8 to 20 (of which ceteareth-20, steareth-20 and steareth-100 are preferred), poloxamer 185, poloxamer 407, N,N-dimethyl dodecylamine N-oxide, and mixtures thereof, are employed to increase follicular delivery and/or follicular residence time of certain water soluble ornithine decarboxylase inhibitors of which 2-2,5-diamino pentanoic acid and its pharmaceutically acceptable salts, hydrates, optical enantiomers and racemic mixture are preferred.

使用通式为CH3(CH2)xCH2(OCH2CH2)nOH的烷基醇的聚乙二醇醚，其中x为8-20(其中鲸蜡硬脂醇醚-20、硬脂醇醚-20和硬脂醇醚-100是优选的)、poloxamer 185、poloxamer 407、N，N-二甲基十二烷胺N-氧化物及其混合物来提高某些水溶性的鸟氨酸脱羧酶抑制剂的毛囊传输和/或毛囊停留时间，优选的抑制剂是2--2，5-二氨基戊酸及其药学上可接受的盐、水合物、光学对映异构体及外消旋混合物。

In 1L semi-continuous tank reactor,researches the effects of sodium dodecylsulfate,potassium oxalate,mixture of sodium dodecylsulfate and potassium oxalate on formation process of methane hydrate .

在1L的半连续搅拌槽式反应器中，研究了添加剂十二烷基硫酸钠、草酸钾和草酸钾与十二烷基硫酸钠复合对甲烷水合物生成过程的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。