查询词典 vacuo

Then the relationship between the vibration frequency of the plate in water and that in vacuo and the effect of nondimensionalized added virtual mass incremental are obtained by utilizing Rayleigh method.

进而应用瑞利方法得到了方板水中振动频率与真空中振动频率、无量纲附加虚质量增量之间的关系。

Based upon the data of modal analysis for the plate in vacuo by finite element method and properly dealing with the integral at sin-gularity, the value of NAVMI is obtained by discretizing the integral.

在真空中模态的有限元方法分析数据以及采用适当方法处理奇点积分的基础上，应用离散积分计算了无量纲附加虚质量增量的值。

Then the relationship between the vibration frequency of the plate in water and that in vacuo and the effect of nondimensionalized added virtual mass incremental are obtained by utilizing Rayleigh method.

引 言机械结构在水中振动要涉及到具有挑战性的流-固耦合问题[1，2 ] ，通常求解的方法是对结构用有限元方法写出振动方程，对流体用边界元方法写出控制方程，再利用边界条件及辐射条件将两者联系起来求解。

CuO/γ-Al_2O_3 catalyat ; copper valence ; reduction in vacuo ; CO adsorption ; surface infrared spectrocopy

CuO／γ－Al_2O_3催化剂；铜的价态；真空还原； CO吸附；表面红外光谱

Based upon the data of modal analysis for the plate in vacuo by finite element method and properly dealing with the integral at singularity,the value of NAVMI is obtained by discretizing the integral.

这种方法的优点是比Geers[3] 提出的DAA2方法精度高 [4 ] ，但缺点是计算量较大，通常要在工作站完成，而且常常要用大型有限元软件[1，2 ，5] 。

Density functional theory calculations were performed to study the structures and relative stability of the gadolinium complexes, Gd(H2O)n3+(n=8,9), in vacuo and in aqueous solution. The polarizable continuum model with various radii for the solute cavity was used to study the relative stability in aqueous solution.

用密度泛函理论方法研究了气相和水溶液中Gd(H2O)n3+(n=8，9)化合物的结构和相对稳定性，其中水溶剂效应利用极化连续介质方法结合多种溶质空腔模型进行模拟。

Under the conditions that water is incompressible, the plate vibrates in small amplitude and the modal deflection in water equal approximately that in vacuo. The addes mass density due to water pressure is expressed using Rayleigh's integral.

在假定流体不可压、方板作小振幅振动、水中模态挠度近似为真空模态挠度的条件下，利用瑞利积分得到了因流体压而引起的附加质量密度。

Moreover the vibration frequencies of the plate are comput-ed using iterative method, which begins with the in vacuo eigenfrequency and continues until in-water eigenfrequency con-verges.

从真空中模态特征频率出发用迭代法直到水中频率收敛为止而得到水中方板的特征频率，进而计算了方板的棤态辐射效率。

Moreover the vibration frequencies of the plate are computed using iterative method,which begins with the in vacuo eigenfrequency and continues nutil in-water eigenfrequency converges.

至于弹性薄板在水中的振动问题，Helisse[6 ] 回顾了研究历史，他用一组特定的三角函数作为基函数采用瑞利-里兹方法求解了有、无障板条件下矩形板在水中的

C "in vacuo within a specified temperature range": the drying is carried out over diphosphorus pentoxide R, at a pressure of 1.5 kPa to 2.5 kPa within the temperature range prescribed in the monograph

特殊温度范围内的真空干燥：在1.5千帕至2.5千帕压力、品种正文规定的温度范围内，采用五氧化二磷干燥

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。