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- Several weak converse theorems of differential mean-value theorems 微分中值定理的几个弱逆定理
- They include threeelastic wave equations involving weak conversion and weak reflection,and one elas-tic wave equation having no conversion. 给出了三种弱转换、弱反射弹性波方程和一种无转换弹性波方程。
- The spirit is willing but the flesh is weak. 心有余而力不足。
- Weak reflection and weak conversion makethe elastic wave equations be applicable to the elastic-wave reverse time recursionimage problem where interbed reverberation must be suppressed thoroughly. 由于这些方程的弱反射、弱转换特性，使它们特别适用于需要压制层间混响的弹性波道时递推成像一类的工程。
- Having to converse in French inhibited me. 需用法语交谈，使我不能畅所欲言。
- The shock make me go all weak at the knee. 这件事把我吓得两腿发软。
- It is a pleasure to converse with her. 和她谈话是一种乐趣。
- 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。
- This statement is converse to that one. 这个声明和那个相反。
- 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。
