您要查找的是不是：
- Results calculated by the HBM and R-K method agree quite well on weak nonlinearity, but these are some inaccuracy on strong nonlinearity. 将谐波平衡法计算结果与龙格库塔法计算结果进行对比，发现在小阻尼、弱非线性条件下结果一致；
- Water waves. Derivation of the equations and linearization. Notions of dispersion and group speed. Weak nonlinearity and solitary waves. Perturbation expansions. 水波。方程的导出及其线性化。离差和群速的概念。弱非线性和孤波。摄动扩展。
- Especially to the dynamical problems with the long times courses of the systems, even neglect very weak nonlinear factors, it often cause the essential error in analyse and calculation. 特别对于系统的长时间历程动力学问题,即使略去很微弱的非线性因素,也常常会在分析和计算中出现本质的错误。
- The results show the method works very well in identifying weak nonlinearities in damping and stiffness of structures. 结果表明提出的方法能够准确的辨识结构中的弱非线性阻尼及刚度参数。
- The spirit is willing but the flesh is weak. 心有余而力不足。
- The shock make me go all weak at the knee. 这件事把我吓得两腿发软。
- You must be weak in the head if you believe that. 你相信那件事可就太傻了。
- He cannot run because he has a weak heart. 他有心脏病，不能跑。
- A fearful person is a weak person. 怕这怕那的人是软弱的人。
- The shock made me go all weak at the knees. 这件事把我吓得两腿发软。
- His weak chest was a legacy of a childhood illness. 他那瘦弱的胸脯是儿时患病的后遗症。
- In a weak moment, I agreed to pay for her holiday. 我一时心软同意了支付她度假的费用。
- He is weak with hunger, so I have to support him. 他饿得没有力气，我得搀着他。
- He pushed a weak student through the exam. 他帮助一位成绩差的学生通过了考试。
- He was too weak even to lift his hand. 他虚弱得连手都抬不起来。
- Her health varies from good to rather weak. 她的健康状况变化不定，有时良好，有时相当差。
- Weak foundations caused the house to subside. 由于地基不牢，这所房子已下陷。
- The patient is too weak to speak. 病人太衰弱了，不能说话。
- The defence argue/argues that the evidence is weak. 辩护律师提出理由认为证据不充分。
- The small weak child became the scorn of the class. 这个瘦小软弱的孩子成为全班嘲笑的对象。
