英语词汇“spring line”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	spring line
释义	spring line noun 1. : spring 11b 2. : an imaginary line connecting the two opposite points at which the curve of an arch or vault begins
随便看	nitre nitre nitriary nitric nitric nitric acid nitric anhydride nitric oxide nitridation nitride nitride nitriding nitridize nitrido- nitrido nitrifaction nitriferous nitrifiable nitrification nitrifier nitrify nitrile nitrile nitrile rubber nitrilo

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