perturbation
英 [,pɜːtə'beɪʃ(ə)n]
美[,pɝtɚ'beʃən]
- n. [数][天] 摄动；不安；扰乱
词态变化
复数: perturbations;
助记提示
1、per- "through" + turb- + -ation.
中文词源
perturbation 焦虑，不安
来自perturb,使焦虑，不安。
英英释意
- 1. an unhappy and worried mental state;
- "there was too much anger and disturbance"
- "she didn't realize the upset she caused me"
- 2. (physics) a secondary influence on a system that causes it to deviate slightly
- 3. activity that is an intrusion or interruption;
- "he looked around for the source of the disturbance"
- "there was a disturbance of neural function"
- 4. a disposition that is confused or nervous and upset
- 5. the act of causing disorder
英文词源
- perturbation (n.)
- late 14c., from Old French perturbacion "disturbance, confusion" (14c.) and directly from Latin perturbationem (nominative perturbatio) "confusion, disorder, disturbance," noun of action from past participle stem of perturbare (see perturb).
实用场景例句
- temperature perturbations
- 温度的些微变化
牛津词典
- ...perturbations in Jupiter's gravitational field.
- 木星重力场的微小变化
柯林斯高阶英语词典
- This message caused perturbation in the Middle East Headquarters.
- 这则消息在中东总部引起了不安。
柯林斯高阶英语词典
- Robust stabilization of a class of linear system with nonlinear perturbation is discussed in this paper.
- 摘要主要讨论了一类非线性扰动不确定时滞系统的鲁棒镇定问题.
期刊摘选
- The definition of admissible perturbation is romained in the appendix of part 2.
- 有关可容许扰动的定义包含在这部份2的附录中.
期刊摘选
- The eigenvalues of a normal matrix are not sensitive to its elements perturbation.
- 本文研究一类正规矩阵反问题,给出有解的充要条件及通解表达式.
期刊摘选
- Based preemptive priority queuing network model and infinitesimal perturbation analysis schemes , new scheduling algorithm is presented.
- 建立了一种基于摄动分析方法的窗口流控新算法,给出了各种负载条件下的仿真实验结果.
期刊摘选
- The course also examines approximation methods: WKB method, variational principle, and perturbation theory.
- 同时,本课程也解释了几种常用的近似方法: WKB方法 、 变分原理 、 以及微扰理论.
期刊摘选
- The ability of the soil to recover from perturbation.
- 土壤自干扰环境中之恢复能力.
期刊摘选
- A perturbation theory model was set up for calculating vapor liquid equilibrium ( VLE ).
- 建立了一个微扰理论模型来 计算流体 的汽液平衡.
期刊摘选
- Based on the perturbation theory a theoretical model for chain like molecules is established.
- 对链状分子体系用微扰理论建立了理论模型.
期刊摘选
- Perturbation concept is used to demonstrate the mission orbits of LISA, ASTROD , and SOHO.
- 从扰动的观点看常用的星际轨道, 包括LISA 、 ASTROD、SOHO轨道.
期刊摘选
- For degenerative situation, the perturbation to point set's coordinates was executed to enhance the robustness.
- 对多点共面或共球的退化情况, 将点坐标加以细微扰动,提高算法健壮性.
期刊摘选
- The stability margin satisfied the performance for systems with structured perturbation was investigated.
- 研究了结构摄动系统满足指定性能的稳定裕度问题.
期刊摘选
- A method for robust flutter computation is presented by using flight altitude as a perturbation variable.
- 提出了一种以飞行高度作为摄动变量,利用结构奇异值理论来进行鲁棒颤振计算的方法.
期刊摘选
- This paper introduces the concept of minimal perturbation efficient solution in minimal perturbation constraints programming.
- 文中引进了极小扰动约束规划的极小扰动有效解概念.
期刊摘选
- In earlier analysis, was usually treated as a perturbation and was left out.
- 在前人的分析中, 前端面反射率往往被当作微扰而被有意无意地忽略掉了.
期刊摘选
- Synchronization of chaotic system in the presence of random perturbation.
- 随机扰动下一类混沌系统的同步.
期刊摘选
- At first, a necessary lemma is investigated, and thereby the absolute perturbation bounds is given.
- 首先推导出了一个必要的引理,然后给出了扰动方程的绝对扰动界, 进而相对扰动界也相应给出.
期刊摘选
- Because of the perturbation, Mars experiences some torque.
- 因为有微扰, 火星就受到一些转矩的作用.
辞典例句
- Coordinate perturbation method, a novel optimization method, is recommended here.
- 本文提出了一种新的最优化算法 —— 坐标扰动法.
期刊摘选
- And using perturbation moment theory, the variances of random differential equations material point shift were gotten.
- 通过小噪声摄动理论, 建立了小噪声随机微分方程.
期刊摘选
- This message caused perturbation in the Middle East Headquarters.
- 这则消息在中东总部引起了不安。
柯林斯例句