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- Solution path discontinuities in parametric nonlinear programming formulation of two burn orbit transfer problems 两个燃烧轨道迁移问题参数非线性规划公式中轨迹解的不连续性
- By comparing with Hohmann orbit transfer, the aeroassisted orbit transfer decreased fuel consumption obviously. 通过与霍曼轨道转移相对比,气动辅助变轨明显地降低了燃料消耗。
- His treatment of the transfer problem and of the gains from trade are both rigorous and classic. 他对转让问题和贸易收益的论述既严谨又具有权威性。
- Abstract The Gauss pseudospectral method was used to solve the coplanar aeroassisted orbit transfer from high earth orbit to low earth orbit (HEO-LEO). 摘要 将高斯伪谱法用于共面高轨道到低轨道航天器气动辅助轨道转移的研究。
- The 4 built UMT lines in Shanghai have observed big transfer problem between different lines. 摘要上海市已建成的4条轨道交通线路存在著换乘难的问题。
- When one weighs the opposing forces, the elements of space and time, and the sea-land transfer problem, one sees that Churchill's foot-dragging made sense. 如果我们衡量一下双方的兵力、时间与空间的要素,以及海陆转运等问题,我们就会明白,丘吉尔迟迟未能采取行动是合情合理的。
- A homogenization method to the two dimensional steady heat transfer problem for the random layer composite materials is presented, and the validity of this scheme is proved. 摘要针对二维单向随机复合材料的稳态热传导问题给出了一种均匀化方法,证明了均匀化方法的合理性。
- Fluidized quick freezing of vegetable and fruit is a complicated heat transfer problem due to the differences in thermal properties between frozen and unfrozen zones. 蔬菜水果速冻过程是一多物理参数变化(表面对流换热系数,导热系数,比热)并含有冻结潜热的复杂过程。
- Based on relative motion equation of satellite state transferring, analytic solution of two-impulse orbit transfer of constellation is derived, which is analytic equation of impulse control variable. 基于卫星相对运动状态转移方程,推导出了星座双脉冲式变轨的理论解,即所要施加的脉冲控制量的解析式;
- Present a numerical method to solve Conjugate heat transfer problem of the laminar flow in fin tubes by Combining the boundary clement method in solid regions and Duhamel theory in fluid regions. 本文讨论了在固体区域应用边界元方法(BEM)和在流体区域应用Duhamel理论相结合,求解外肋圆管内层流换热耦合问题的计算方法。
- These built-in workflow management features help prevent work transfer problems. 这些内建的工作流程管理特性能够帮助避免工作传递的问题。
- China “Shenzhou seven” the spaceship on 25th lifts off smoothly, and the orbital transfer is before dawn successful on 26th. 中国“神舟七号”宇宙飞船25日顺利升空,并于26日凌晨变轨成功。
- The spacecraft is in orbit around the moon. 该航天器在绕月球轨道运行。
- To develop light, reliable, sanitary space station maneuverable orbital transfer thruster, the novel gas dynamic resonance ignition method was applied. 为研究轻型、可靠、环保的空间站机动变轨发动机,在氢氧液体火箭发动机头部设计中引入了新型气动谐振点火技术。
- China's first lunar probe Chang'e-1 completed its first orbital transfer Thursday afternoon, another key move in its 380,000-km journey to the moon. 中国的第一台月球探测器嫦娥1号在它的380,000公里旅途结束了它的第一个变轨星期四下午,另一关键移动到月亮。
- Link state information is dynamic and might change when a connector experiences transfer problems or when transfer issues are resolved. 链路状态信息是动态的,当连接器遇到传输问题或者传输问题解决时,此信息可能会发生变化。
- R. Bialecki, Solving nonlinear heat transfer problems by BEM. In Boundary Elements X, Vol. 2(Edited by C. A. Brebbia), pp. 195-222, 1988. 赵家奎;微分转换及其在电路中的应用,华中理工大学出版社1986.
- The space shuttle will orbit a weather satellite. 太空梭将把一个气象卫星送入运行轨道。
- The launch vehicle lifts the satellite into orbit. 太空火箭将人造卫星送入运行轨道。
- Pollution Transfer Problem in Townlet Development 城镇发展中的污染转移问题