annular

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annular
annular, a. (ˈænjʊlə(r)) Also 6 anular. [ad. L. annulār-is (prop. ānulār-is) of or pertaining to a ring, f. annul-us ring: see -ar. Perh. immed. ad. Fr. annulaire (16th c. in Littré).] 1. Of or pertaining to a ring or rings; ring-like, ring-formed, ringed. annular space: the space between an inner a... Oxford English Dictionary
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annular
annular/ˈænjulə(r); `ænjəlɚ/ adjshaped like a ring 环形的; 有环纹的 The annular markings on a tree indicate its age. 树的环形纹理显示其年龄. 牛津英汉双解词典
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How to show that a map without fix point from annular region to annular region is homotopic to antipodal map $\Omega=\\{x\in R^3: 1\le||x||\le2\\}$ If $L:\Omega\rightarrow \Omega $ is continuous and without fix point...
The homology of $\Omega$ is $H_0(\Omega,\Bbb{Q})=H_2(\Omega,\Bbb{Q})=\Bbb{Q}$ and $H_i(\Omega,\Bbb{Q})=0$ if $i\ne 0,2$. The Lefschetz formula tells you that a map f without fixpoints necessarily $0=Tr(H_0(f))+Tr(H_2(f)=H_0(f)+H_2(f)$. But $H_0(f)=H_0(id)=1$ for all $f$, hence in our case $H_2(f)=-1...
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annular arrangement of counter in Chinese
环状排列计数器 "annular counter" in Chinese: 环形计数器; 环状计数管 "off-counter sale arrangement" in Chinese: 内部认购安排 "annular" in ...
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annular arrangement - Chinese translation - Linguee
flora.ac.cn. Many translated example sentences containing "annular arrangement" - Chinese-English dictionary and search engine for Chinese translations.
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annular bearing in Chinese - annular bearing meaning in Chinese ...
annular bearing in Chinese : :环形轴承…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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annular antenna in Chinese - annular antenna meaning in Chinese ...
annular antenna in Chinese : :环形天线…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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annular pattern in Chinese - annular pattern meaning in Chinese ...
annular pattern in Chinese : 环状水系…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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annular termination in Chinese - annular termination meaning in Chinese ...
annular termination in Chinese : :环状末端…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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annular cylinder in Chinese - annular cylinder meaning in Chinese ...
annular cylinder in Chinese : :环形汽缸…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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annular manifold in Chinese - annular manifold meaning in Chinese ...
annular manifold in Chinese : :环形歧管…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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annular reactor in Chinese - annular reactor meaning in Chinese ...
annular reactor in Chinese : 环状反应器 …. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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annular angelfish in Chinese - annular angelfish meaning in Chinese ...
annular angelfish in Chinese : 肩环刺盖鱼…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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annular resistor in Chinese - annular resistor meaning in Chinese ...
annular resistor in Chinese : 环状电阻器…. click for more detailed Chinese translation, meaning, pronunciation and example sentences.
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