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- weak homology group 弱同调群
- Here we generalize the theory to the ring Z to compute 1-dimensional homology group of a given 2-complex with a combination of algebraic and graph-theoretic method. 这里我们将此理论推广到一般Z上用以计算给定2-复型的一维同调群，其中我们采用的方法是代数与图论相结合的方法。
- relative singular homology group 相对奇异同岛
- absolute singular homology group 绝对奇异同岛
- homology group of compact Lie group 紧李群的下同调群
- homology group of local coefficient 局部系数下同调群
- homology group of the second kind 第二类下同调群
- The spirit is willing but the flesh is weak. 心有余而力不足。
- Homology group of simplicial complex 单纯复形的同调群
- 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。
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- 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 broke away from that lawless group years ago. 他在几年前脱离了那个非法团体。
- 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。
