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- THE TOTAL MINIMAL BACKWARD PERTURBATION METHOD FOR SYMMETRIC LINEAR SYSTEMS 解对称线性方程组的总体最小扰动方法
- The Optimal Backward Perturbation Analysis for Orthogonal Matrix Eigenvalue Problem and Rice Condition Numbers of Certain Characteristic Subspaces 正交矩阵特征值问题的最佳向后扰动分析与一类特征子空间的Rice条件数
- He lined out for home without a backward glance. 他头也不回，急忙往家里走去。
- This part of the country is still backward. 这个国家的这个地区仍很落后。
- In some cities housing conditions went backward. 某些城市的住房条件越来越差。
- The teacher was patient with backward children. 那位老师对迟钝的学童十分耐心。
- He looked backward over his shoulder. 他回头向后看。
- backward perturbation 向后扰动
- She looked backward over her shoulder. 她回头往後看。
- Sheila is very clever but rather backward in expressing her ideas. 希拉很聪明，然而在表达思想时却有些腼腆。
- Although he is clever, he is backward in giving his views. 他虽然很聪明，却不善发表他的意见。
- Solar perturbation of the lunar orbit. 出差由于太阳引力引起的月球轨道运动的摄动
- Frank was so backward that he hesitated to ask her to dance. 法兰克非常腼腆,不好意思请她跳舞。
- He had a firsthand taste of life in backward mountainous areas. 他直接体验过落後山区的生活。
- Extreme emotional disturbance; perturbation. 激动；不安；焦虑极度的情绪不安；扰乱
- To cause perturbation, as of a celestial orbit. 摄动引起摄动，如天空中轨道的
- SOMA uses a PRT parameter to achieve perturbation. 台北爱乐的SOMA使用参数，以实现扰动。
- Second-order perturbation theory. 二阶微扰理论
- A backward flow of water, as from the action of oars. 反流，逆流向后流的水，如由浆的划动引起
- The backward man lacks black background. 落后的男子缺少黑色背景。
