perturb

英 [pəˈtɜːb] 美 [pərˈtɜːrb]

v.  使焦虑; 使不安

过去分词:perturbed过去式:perturbed第三人称单数:perturbs现在分词:perturbing

TOEFLIELTSTEM8

BNC.18847 / COCA.21889



牛津词典

verb

  1. 使焦虑;使不安
    to make sb worried or anxious
    1. Her sudden appearance did not seem to perturb him in the least.
      她的突然出现似乎一点也没有令他不安。

柯林斯词典


双语例句

  1. What perturbs me is that magazine articles are so much shorter nowadays.
    让我不安的是现在杂志文章都短多了。
  2. To verify our system, we must set up the application under test in the lab, perturb it with events, and detect when it fails to handle an event properly.
    为了验证我们的系统,我们必须在实验室设置在测的应用程序,利用事件进行干扰,并且当不能适当处理事件时进行监测。
  3. For this reason, the expression values are also passed though a bump map to perturb the surface normals.
    因为这个原因,表达式数值也能传递给一个凹凸贴图,去扰乱表面法线。
  4. Venus, Earth, and other planets also perturb Mercury's motion.
    金星,地球和其他行星也使水星的运动受到摄动。
  5. The problems of shop floor alienation which perturb management.
    困扰管理部门的工人异化问题。
  6. Headache, fever, minor bruises and just simple difficulties and challenges in day to day life perturb us, sadden us.
    头痛,发烧,轻微的擦伤和只是简单的困难和挑战,在一天一天的生活打乱我们,我们痛心。
  7. The first approach to dealing with this is to perturb the depth being output from the pixel shader by a depth stored in the particle texture.
    解决这个问题的第一个办法是是改变深度。这个深度由像素着色器根据储存在粒子纹理中的深度生成。
  8. Very few events are able to perturb an increasingly globalised world.
    几乎没有什么事情能够减缓全球化的脚步。
  9. Research on Variable Perturb Step MPPT Control of Photovoltaic System
    光伏发电系统变步长MPPT控制策略研究
  10. Thirdly, a data perturbing method is described to perturb original data by applying "single attribute transition probability matrix".
    然后描述了通过单属性转移概率矩阵来变换原始数据的数据变换方法。
  11. Pseudo-random sequence generated by PB-PLCM ( perturb based piecewise linear chaotic map) is used in the designing of stream cipher, the fine statistical properties of the sequence make it easy to obtain a high security lever.
    结合数字混沌理论和传统流密码技术,应用加扰分段线性混沌映射(PB-PLCM)系统设计了一种基于数字混沌动力学系统的序列密码。
  12. The scheme has biggish innovations on power amplification, automatism rearrange, perturb resisting, signal attenuation preventing, real time video frequency signal surveillance etc.
    该设计方案在功率放大、全自动倒换、抗干扰、抗信号衰弱、实时视频信号监控等方面都有较大创新。
  13. , we used actin polymerization inhibitor latrunculin B ( LATB) under quantitatively controlled conditions to perturb the actin cytoskeleton and observation with laser scanning confocal microscope.
    花粉管生长中的作用,我们应用不同浓度的微丝聚合抑制剂latrunculinB(LATB)处理花粉管,并通过激光共聚焦显微镜观察微丝聚合状态的动态变化。
  14. Molecular fluorine reaction with Si ( 100) 2 × 1 does not perturb the Si-Si dimer bond and the reaction virtually ceases at one monolayer of F coverage for F_2 at low incident kinetic energy.
    F2与Si(100)2×1反应并不扰乱Si-Si二聚键,在F2入射平动能低时反应实际上在氟的复盖度为一个单层上停止进行。
  15. To protect personal privacy, we perturb personal data with a randomization algorithm and then do modeling based on it The paper introduces the development of the privacy preservation issue, the generic algorithm of randomization and the foreground of the privacy preservation technology.
    为了保护个人隐私,我们首先对一些私有数据进行随机化处理,在此基础上再进行建模。本文介绍了隐私保护课题的发展、随机化处理方法的一般算法及隐私保护技术的发展前景。
  16. Finally, simulating experiment for the whole system is carried through with the stator flux-oriented vector strategy and control arithmetic of rotor speed perturb and power observation.
    最后本文采用定子磁场定向的矢量控制策略,结合转速扰动功率观测的控制算法对转子侧进行了仿真验证。
  17. The performance analysis and control of hybrid systems are difficult when the parameters perturb uncertainly. Therefore, it is necessary to propose the powerful approaches for robust performance analysis and control.
    当系统参数存在不确定性时,系统的性能分析和控制变得非常困难,因此,给出混杂系统在参数不确定情况下的鲁棒性能分析和控制方法在理论和应用两方面都具有重要意义。
  18. Presence of antibiotics in environment could perturb ecosystem including bacteria, water and soil microorganism and plants, increase the proliferation of antibiotics-resistant pathogens, and could pose threats to human health.
    环境中的抗生素会对环境生态系统包括细菌、水生生物、土壤生物和植物等产生危害,并产生大量耐药菌,对人类健康构成威胁。
  19. The perturb& observe algorithms and Incremental Conductance Algorithm are mainly introduced for MPPT.
    MPPT方法主要介绍了扰动观测法和电导增量法,实现了功率寻优要求。
  20. Apply high-order sliding mode to deal with the problem in fast dynamic systems with perturb
    高阶滑模在具有扰动的快变动力控制系统中的应用
  21. When all the Pareto optimal solutions are trapped into local optima, perturb the Pareto optimal solutions and restart the search process.
    当所有的解都陷入局部极小时,扰动已得到的Pareto解集,然后从扰动后的解集出发重新搜索。
  22. The initial solution has little effect on the algorithm: when the algorithm is trapped into a local optimum, it needs to perturb the best-so-far solution and continue the searching process, while the perturbation strength has significant effect on the performance of the algorithm.
    该算法对初始解不是很敏感:当算法陷于局部极小时,需要对当前最优解做扰动并继续搜索,此时扰动强度对算法的性能有明显的影响。
  23. For the perturb& observe algorithm, if the tracking step is short enough, the tracking accuracy will be ideal, but with more iteration.
    如果跟踪步长选取的比较小,扰动观测法的跟踪精度也比较理想,但迭代次数较多。
  24. The method takes the results obtained by GA after a few evolutions ( rough GA) as the initial solution, then, the IWO is employed to perturb the initial solution in order to improve the global searching ability and accelerate the convergence speed.
    该算法将GA初步进化(粗GA)得到的结果作为初始解,利用IWO算法对其进行微扰,以提升算法的全局搜索能力,加快其收敛速度。
  25. The simulation results indicate that Perturb& observe Algorithm is also an effective method to achieve the maximum power point tracking with simple algorithm.
    仿真结果表明,干扰观测法能有效地实现最大功率跟踪,是一个简单有效的最大功率跟踪方法。
  26. However, folic acid, especially at high dose, can aggravate the premature differentiation of NSCs in embryos exposed to hyperglycemic and diabetic conditions, which may perturb the internal environment and be detrimental to the normal development of CNS.
    然而,叶酸尤其是高剂量叶酸,可能加重高血糖组和糖尿病组胚胎端脑神经干细胞的过早分化,干扰脑内环境,最终可能影响中枢神经系统的正常发育过程。
  27. The method of array auto-calibration for wideband sources is discussed. A new method is proposed. This method can calibrate the unknown error of sensor gain and phase, array shape perturb and sensors coupling by assistant sensors.
    利用辅助阵元,针对存在阵元通道幅相误差、阵元位置误差、阵元间互耦的阵列,提出了宽带非平稳信号模型下阵列误差自校正的方法。

英英释义

verb

  1. throw into great confusion or disorder
    1. Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt

    Synonym:    derangethrow out of kilter

  2. disturb in mind or make uneasy or cause to be worried or alarmed
    1. She was rather perturbed by the news that her father was seriously ill

    Synonym:    unhingedisquiettroublecarkdistractdisorder

  3. cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull
    1. The orbits of these stars were perturbed by the passings of a comet

  4. disturb or interfere with the usual path of an electron or atom
    1. The electrons were perturbed by the passing ion