查询词典 asymptotic expansion

Thermal expansion is one of the important properties of minerals, and thermal expansion coefficient...

热膨胀是矿物材料的重要物理性质，热膨胀系数是重要的热力学参数之一。

Thermal expansion is one of the important properties of minerals, and thermal expansion coefficient is an important thermodynamic parameter.

热膨胀是矿物材料的重要物理性质，热膨胀系数是重要的热力学参数之一。

Energy density and particle density in high energy heavy-ion collisions are calculated with infinite series expansion method and Gauss-Laguerre formulas in numerical integration separately, and the results of these two methods are compared, the higher terms and linear terms in series expansion are also compared.

分别用无穷级数展开方法和数值积分计算中的高斯拉盖尔求积法对高能重离子碰撞中能量密度和粒子密度数值进行计算，并对结果及级数展开中的高次项和一次项的大小进行了比较。

The time-domain response of the induced currents on a scattering object irradiated by a plane wave with a Gaussian pulse in time is expanded as an associate Hermite series in this paper. Using the isomorphism of the associate Hermite function and its Fourier transform, the frequency-domain information can be obtained similarly to the time-domain expansion. According to the corresponding relation between time-domain analysis and frequency-domain analysis, and using the early-time response and the low-frequency information of the induced currents, the non-known coefficients in the expansion series can be decided. The entire responses of the induced currents on the scattering object in both time and frequency domains can be obtained at one time by simultaneous extrapolation computation using both the early-time response and the low-frequency information of the induced currents.

摘要首先根据散射体在高斯脉冲平面波激励下感应电流的能量几乎全部集中在时间轴和频率轴上的有限范围内，该文将时域响应展开为系数待定的连带Hermite级数的叠加，并根据连带Hermite函数的傅里叶变换的自反性，得到与时域响应形式类似的频域响应；然后利用时域方法和频域方法分别计算散射体上感应电流的早时响应和低频信息；最后经过时域和频域联合外推计算，由早时响应和低频信息确定时域和频域响应的待定系数，从而获得了整个时域和频域的完全响应。

So analysis the influencing factors and calculating measure of bridge expansion joint, makes for developing the new product and reasonable selecting of expansion joint.

因此从多方面分析影响伸缩量的因素和计算方法，有助于研制新产品和选择合理的伸缩装置。

The safety and economy of the bridge depend on the exact calculation of the expansion amount , rationality to select for the expansion joint and the quality requirements for construction and installation.

伸缩量的准确计算，伸缩缝的合理选型及施工安装质量的好坏，直接影响桥梁本身寿命和行车安全。

All expansion joints shall have bolted flange-to-flange type connections on both sides of expansion joint for removal of complete unit.

所有的伸缩接头都应当采用法兰栓接。

The method includes a "Theorem of General Expansion" for a complicated network and a "Theorem of Minimizing Expansion" for a logical expression.

本文提出了复杂网络的"大展开定理"和逻辑表式的"最小化展开定理"，并简要地叙述了本文作者已发表在"继电器"杂志(1978年1、2期)上的"逻辑——概率变换"和"单幂变换"等法则。

It is demonstrated that the error of thermal deformation with mean coefficient of linear thermal expansion is more high, so that it is certain trend to use immediate thermal expansivity instead of mean coefficient of linear thermal expansion to improve the instruments accuracy in precision engineering.

理论上建立了平均线膨胀系数同瞬间线膨胀系数计算热变形的误差数学模型，并通过实验论述了精密工程应用中使用平均线膨胀系数计算的工件热变形误差较大，提出广泛使用瞬间热膨胀系数替代平均线膨胀系数是提高机器设备精度的发展趋势。

Study proposed a strategic ideas : The first is internal integration, and strengthen collaboration division; Two external expansion, the specific is the "9+2" is the PRD in order to achieve their goals positioning in the world to occupy an important one seat, it must be external expansion.

研究提出了一个战略思路：第一是内部整合，加强分工协作；第二是外部拓展，具体就是"9＋2"，就是珠三角将来要实现自己的目标定位，要在全世界占有重要的一席，就必须对外拓展。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。