水合

In order to study the numerical method to solve the viscous incompressible flow with free surface, the 3-D mathematical model for steady and unsteady hydrodynamic problem had been established and closed by k-εbuoyant turbulence model. The algebraic coordinate transformation method was used to fit the free surface, the Runge-Kutta method of three step and second precision was devised to simulate the time step. A high precision up-winding compact scheme was studied for the convection term, and the generalized conjugate residual method was set to solve the Poisson equation.

为了研究粘性不可压缩三维问题的数值求解方法，本文从基本的Navier-Stokes方程出发，采用代数拟合方法处理自由表面，用三级二阶Runge-Kutta方法对时间步进过程进行了模拟，并且对对流项的高精度迎风格式进行了研究，给出了求解压力Poisson方程的广义共轭剩余法，从而建立了能够模拟有自由表面的粘性不可压缩问题的定常、非定常三维水动力学模型，并采用k—ε浮湍流模型对其进行封闭。

The results showed that under a given delayed coagulant , water retentiveness and cohesive strength of stucco gypsum mixed with modified bentonite were higher than that of methyl cellulose .

试验表明，在缓凝剂掺量一定时，单掺改性膨润土的粉刷石膏加水拌合后，其保水性，强度和黏聚性等各项性能指标，均优于掺有甲基纤维素的粉刷石膏，文中还对保水机理进行了分析。

As in the freshly mixed mortar, EPS particle is not affined with cement paste and has a low bulk density, which will be apt to make EPS particle buoy, and lead to the segregation of mortar, the decrease of water retentivity and affect its workability.

在新拌砂浆中，由于EPS颗粒与水泥浆体之间不亲合，且容重很小，所以在搅拌过程中很容易造成EPS颗粒"上浮"，从而导致砂浆分层，保水性下降，严重影响其和易性与施工性能。

The effects of reaction temperature, phase transfer agent and the concentration of rhodium catalyst were examined.

研究了采用水溶性铑膦络合催化体系对双环戊二烯的氢甲酰化反应，考查了反应温度、相转移剂CTAB、铑催化剂浓度等对反应的影响。

It should be pointed out that the physical body, which is considered to be the self, is temporarily composed of seven major elements in the form of solids, liquids, gases, heat, space, root, and consciousness.

殊不知人们所认为是「我」的这个身体，是地、水、火、风、空、根、识，七大假合而成，如果把它分散开，这个身体就不存在了。

Three optimal structures were gotten in this paper by the model of elastic modulus along the grain, elastic modulus in tangential direction, in-plane shearing modulus and laminate rigid:①0/90/0/90/0/90/0/90/0, the outside four veneer is modified, the along grain MOE and MOR are 8377MPa, 60.9MPa respectively; The across grain MOR is 35.1 MPa, and TS is 17.2%.

4通过应用杨木单板顺纹弹性模量、横纹弹性模量、面内剪切模量及层合板刚度模型进行杉木胶合板结构设计，经多次修正，得出较好结构有以下几组：①0/90/0/90/0/90/0/90/0，最外四层为杉木改性单板，顺纹弹性模量和静曲强度分别达到了8377MPa，60.9MPa；横纹静曲强度为35.1 MPa，吸水厚度膨胀率为17.2%。

Then, the quasi-overconsolidation ratio is introduced to consider the effect of super pore pressure; and the fitting formulation is applied to consider the influence of shearing strain. The degenerated formulation of undrained strength of saturated loess is deduced at last; and its reasonableness is proved by the test results.

在此基础上，引入似超固结比的概念来考虑超孔隙水压力的影响，应用拟合公式来考虑剪切变形的影响，最终推导出了饱和黄土不排水强度的退化公式，与试验结果的对比证明了理论公式预测结果的合理性。

Poly lactic acid polymers were synthesized from lactic acid by one-step method with molecular sieve.

以乳酸为原料，采用分子筛除水的一步法本体熔融缩聚合工艺制备了聚乳酸。

Methods In the presence of sodium nitrate the ammonium thiocyanate ,malachite green and Co can form water-insoluble ion-association complexes.

方法在少量NaNO3存在下，向体系中加入硫氢酸铵和孔雀石绿，使其与Co形成不溶于水的三元离子缔合物浮于盐水相上。

The wedge shape provides a good 'bite' on the inside of a sharp turn while the outside sponson slides over the water, preventing tipping or flipping.

在急转弯时楔状水鳍内侧咬合水体，外侧排滑水体，保证了整船不会翻滚。

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。