对称问题 meaning in English
symmetric problem
Examples
- The analysis for the non - axisymmetric problem of bellows
波纹管的非对称问题分析 - By means of discussing plane symmetry that relates to point , curved surface and curve in a three - dimensional space , this paper gives a method to study point 、 curved surface 、 plane symmetric point on a curve 、 symmetric curved surface and symmetric curve equation
摘要讨论了三维空间中，点、曲面、曲线关于平面的对称问题，从而给出了求点、曲面、曲线关于平面对称的对称点、对称曲面、对称曲线方程的方法。 - The difficult points of cost plan and control for large - scale intermittent manufacture include laying stress on controls of product project cost , preconstruction on cost standard reference system , reasonable share for total cost , structure of target cost as well as symmetrization of cost information , etc .
摘要大型离散制造企业成本计划与控制的难点有：产品项目成本控制的特殊需求、成本标准参照体系的预构建、总额费用的合理分摊、目标成本的体系结构、成本信息的对称问题等。 - The prediction of disastrous space weather is a hot topi c among solar - terrestrial physics and high technological fields . we propose that the future forecasting of the physical conditions that the violent solar disturb ance causes at the earth by propagating in solar wind depends heavily on the num erical method . this paper analyses the existing problems we are facing in the num erical prediction of disastrous disturbance events in solar - terrestrial space , an d then gives some suggestions for future study . for such a purpose , a six step sol ution method is developed to deal with one - dimensional symmetric interplanetary shock dynamics . it should be point out that that initialization of fully self - con sistent 3 - d mhd codes considering the solar - interplanetary - geomagnetic coupled r elations with initial - boundary values at 1r of the global output of solar pl asma and magnetic field using available solar observations is an essential requi rement in space weather operational codes for forecasting purposes
空间灾害性天气的预报是日地物理学界及高科技领域的热门话题.未来预测太阳剧烈扰动所造成的行星际风暴到达地球空间的状态势必借助于数值方法.浅析了空间灾害性扰动事件数值预报存在的问题及未来设想，针对这一目的对一维球对称问题提出了处理行星际激波的6步求解方法，指出未来空间灾害性扰动事件预报模式应是一个基于三维的以真实太阳风为背景自洽建立起来的、以太阳等离子体输出及磁场全球结构为初边值、太阳、行星际、地磁因果耦合模式