查询词典 asymptotic expansion

In the second chapter, Asymptotic Boundary Conditions are derived and explained physically, according to the theory of multipole moment expansion.

第二章结合多极矩展开理论，针对轴对称电磁场问题，进行了渐近边界条件的推导及物理解释。

In order to calculate the crack expansion life in the action of variable amplitude load for the metal bar with V-shaped notch, the formula of bar fracture frequency was obtained theoretically by setting a size of bar fracture region applied in the engineering. Based on it, the mathematic expression of crack expansion life of bar V-shapednotch tip in the action of variable amplitude load was built.

针对金属棒料在变幅载荷作用下需要较精确地获取其V形槽尖端裂纹扩展寿命的问题，通过给定一个工程上能接受的瞬断区尺寸，获得了棒料断裂频率的计算公式，在此基础上，建立了变幅载荷作用下棒料V形槽尖端裂纹扩展寿命的数学表达式。

This kind of expansion, made without adding heat, is called an adiabatic expansion.

我们把这种不加进热量的膨胀称为绝热膨胀。

It is found that the pressure wave generated by thermal expansion can affect the temperature field. It is suggested that this effect is caused by the adiabatic compression and expansion when pressure waves traverse the media.

通过分子动力学模拟考察了气态，液态和固态的氩在脉冲加热情况下的快速瞬态导热，观察了温度，压力，动量，密度等物理量的分布，以及动能在三个平动自由度上的分布。

The homogeneous nucleation rate, saturation rate, and droplet growth equation at state 250K、100Kpa for pentone affected by single expansion wave has been obtained in the joined international cooperation research. Results exposed that temperature decrease in the homogenous nucleation and condensation is the preponderant factor in unsteady adiabatic expansion process.

参与同质核化率实验的国际合作研究，获得250K、100KPa状态附近戊醇在单脉冲膨胀波作用下的同质核化率、饱和度及同质核化微滴在低压状态中长大状态方程；研究表明非定常绝热膨胀过程中，降温因素在同质核化和凝结过程中占主导作用。

Assistance to the Air Force to carry out the expansion. After the war, into the development phase of the restoration, completed basic combat training and logistical support systems, combat aircraft to achieve the beginning of jet. 60 era for the expansion and gradually equipped with F-86D, F-5A and F-4F fighter. 80s equipped with F-5E/F, F-16 fighter aircraft, air defense automated alert system officially running. In July 1991, the Army air defense artillery and troops under the command of the Air Force formed to form a radar, aircraft, surface to air missile (anti-aircraft) integrated air defense system. 90, to receive from the U.S. military operational command, weapons and equipment have been developed, the first home-made aircraft KF-16 aircraft factory, F-16 fighters equipped with AIM-120 advanced air-to-air missile in the distance, procurement from France,"Northwest Wind "-air missile. 2002 selection of a new generation of F-15K fighter jets.

战后，进人恢复发展阶段，基本建成作战、教育训练和后勤支援系统，作战飞机开始实现喷气化。60年代进行扩编，逐步装备F—86D、F—5A和F—4F型战斗机。80年代装备F—5E/F、F—16型战斗机，自动化防空警戒系统正式运行。1991年7月，陆军防空炮兵司令部及所属部队划归空军建制，形成雷达、飞机、地空导弹一体化防空体系。90年代，从美军接收作战指挥权，武器装备也得到较大发展，首架自制KF—16型飞机出厂，F—16型战斗机装备AIM—120型先进中距空空导弹，从法国采购"西北风"式地空导弹。2002年选用F—15K新一代战斗机。

Expansion of the volume of air created by the active chamber in the expansion cylinder.

扩大体积的空气所产生的积极商会在扩大缸。

The design method is described, and the calculation results are presented under the standard air conditioning condition. The working process of the two-stage expander is discussed, and the difference between the two-stage expander and the conventional one is stated. In addition, the influence of the dip angle on the expansion chamber volume is analyzed. The results show that the dip angle has little effect on the expansion chamber volume and it is suggested that the effect may be neglected in the expander design.

介绍了该膨胀机的设计方法，给出了标准空调工况下的计算结果，详细讨论了两级旋叶式膨胀机的工作过程，并对两级膨胀机与传统旋叶式膨胀机的区别进行了论述，最后分析了滑片倾角对工作腔基元容积的影响，结果显示，滑片倾角对工作腔基元容积的影响很小，在膨胀机的设计过程中忽略滑片倾角的影响是合理可行的。

ABSTRACT: From the views of urban economics, urban sociology, political economics, anthropogeography, and urban planning and urban design, this paper attempts to generalize the research literature on "urban spatial expansion", and to find a theoretic relationship between urban expansion and its influential factors.

针对"城市空间扩展"的研究，本文尝试从城市经济学、城市社会学、政治经济学、人文地理学和规划设计学等几个视角分别概括和归纳国内外城市研究者的相关成果，为在连续的时空背景下全面综合地认识城市发展条件和影响因素提供必要的理论联系。

It is the first laboratorial experiment results of self-volume deformation of MgO concrete applied to the arch dam foundation of Dongfeng hydropower station in Guizhou province, the laws of self-volume deformation of MgO concete is conducted, the long-term expansion deformation value is reckoned, the arc tangent curve model of the concrete is presented to describe the characteristics of expansion deformation of the MgO concrete.

本文以在国内外首次将MgO混凝土应用于主体工程的贵州东风水电站拱坝基础混凝土的室内自生体积变形成果为例，对MgO混凝土自生体积变形的规律进行了研究，提出了MgO混凝土自生体积变形的反正切曲线模型，用以表达MgO混凝土的膨胀变形特性和推算MgO混凝土的长期膨胀变形值。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。