查询词典 hydrate

As for the radius of porous media effect our experiments select four kinds of sea-sand whose pore radius vary between 125-700μm.The results shows that the pore radius we use in the experiments are too large to produce capillary effect which can clag the process of hydrate formation, only if the pore radius is smaller than 60 nm the can produce capillary effect.

基于粒径范围125-700μm的四种多孔介质的甲烷水合物生成实验结果表明，较粗粒径的多孔介质引起的孔隙间毛细作用对甲烷水合物不会产生明显的阻碍作用，但计算结果表明，孔径粒径小于60nm的多孔介质会阻碍甲烷水合物的生成。

It hold well foreground of sciences and commercial application such as oceanic polymetallic concretion, cobaltic ag1omeration, polymetallic sulfide, natural hydrate and deep-sea hot spring creatures. The abundance resources were called the strategic substituted energy of human sustainable development.

大洋多金属结核、富钴结壳、多金属硫化物、天然气水合物、深海热泉生物等新型资源具有很好的科研与商业应用前景，被誉为21世纪人类可持续发展的战略接替能源。

Compressional wave velocity based on Two-Phase theory is used to estimate gas hydrate and free gas saturation.

目前大多通过双相介质理论的纵波速度来估计水合物和游离气的饱和度。

Gas hydrate and free gas ; Saturation ; Compressional wave velocity ; Quality factor

天然气水合物和游离气；饱和度；纵波速度；品质因子

Different molar ratios of magnesia cement raw materials were controllably prepared at the inlet temperature of 750℃ by changing the feeding rate of hydrate magnesium chloride.

探讨了影响流态化法热解水合氯化镁的主要因素，在进口温度750℃下，改变进料速度，可控地制备了不同摩尔比的镁水泥原料。

A kind of compound SRBH,which was synthesized from rhodamine B, hydrazine hydrate and salicylaldehyde,and SRBH is non-fluorscent naturally.However,the fluorescent extensity of SRBH was enhanced more than hundredfold when the ion of Crwas added to acid solution, therefore SRBH can be tested for Crin acid solution.

介绍了一种化合物SRBH，由罗丹明B，水合肼和水杨醛合成，该化合物本身为非荧光性的，但是当在酸性环境下加入铬离子后，其荧光强度可以增加上百倍，因此可以用该化合物检测水溶液中的铬离子。

Seven to ten percent attapulgite clay mixed with the eutectic salt, sodium sulfate decahydrate, will keep anhydrous crystals suspended in the solution where they will hydrate during phase change and hence contribute to the heat absorbed and released when Glaubers salt are used for heat storage.

七，百分之十凹凸棒石粘土混合的共晶盐，硫酸钠十，将继续暂停无水晶体中的解决方案，他们将在水合物相变，从而有助于吸收和释放热量时Glaubers盐用于蓄热。

It is convenient for sinter to be leached, and the secondary reaction appears little. The slurry after sinter leaching is transferred into autoclave for desilicification at about 170℃, and the siliceous modulus of solution reaches more than 200. Then some lime is added for deep-desilication at normal pressure, the siliceous modulus of solution increases more than 600 even if the Al2O3 content is more than 200g/L.The SiO2 coefficient in hydrate garnet from deep-desilication is more than 0.28. Under conditions of the addition of seed and application of novel technology of carbonization, the contents of Na2O and SiO2 in product are less than 0.37% and 0.025%, respectively.

实验结果显示：烧成的熟料溶出条件宽松，二次反应程度弱；溶出浆液在170℃左右直接进行加压脱硅，脱硅后溶液的硅量指数大于200，再加入适量的石灰进行深度脱硅，即使溶液中氧化铝浓度超过200g/L时，精液的硅量指数也大于600，且得到的水化石榴石中二氧化硅饱和系数大于0.28；通过加入晶种和采用新的碳酸化分解工艺制度，产品中的SiO2 含量降至0.025%， Na2O含量小于0.37%；加入表面活性剂，不仅能将碳分母液蒸发至Na2OT浓度大于300g/L，而且还可有效减缓表面上结疤的形成速度。

Spiral Spirobifluorene acetylated is oxidated by m-chloroperoxybenzoic acid and hydrolyzed by sodium hydroxide ,obtaining 2,2 '- dihydroxy -9,9'- spiral Spirobifluorene .Through nitrification,Reduced by hydrazine hydrate, we may get the 2,2 '- diamino -9,9'- spiral Spirobifluorene which are characterizated by IR, 1H-NMR !

L-酒石酸和乙醇酯化得到酒石酸二乙酯，将保护羧基保护起来，然后用碘甲烷在2，3-位上两个甲基，得到2，3-二甲氧基-酒石酸二乙酯，再用氢氧化钠将其水解，得到2，3-二甲氧基-酒石酸，用五氯化磷将羧基酰化，得到2，3-二甲氧基- 1，4-丁二酰氯，经过与二环己胺反应，得到拆分配体2，3-二甲氧基–N，N，N'，N'-四环己丁二酰胺。

Anhydrous magnesium chloride may be prepared from materials containing magnesium chloride such as magnesium chloride hydrate, carnallite or bittern by different dehydrating methods of organic solvent distillation or molecular sieve absorption, gas protective heating, discomposing the MgCl2-NH3 complex that can be composed from high boiling-point polar-solvent system...

无水氯化镁制备技术经历几十年不断的探索，取得了一些进步，但彻底改变耗能高、污染腐蚀严重、流程复杂的工艺过程，开发流程简单、低污染腐蚀、低成本的绿色工艺仍然需要更深入的研究。

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。