| 单词 | 氢键 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔alpha helix〕A common structure of proteins, characterized by a single, spiral chain of amino acids stabilized by hydrogen bonds.α螺旋：一种蛋白质普通结构，其特征为由氢键所稳定住的单螺旋氨基酸链美国传统〔base-pairing〕The hydrogen bonding of complementary nitrogenous bases, one purine and one pyrimidine, in DNA and in hybrid molecules joining DNA and RNA.碱基配对：结合两个补充氮基（嘌呤和嘧啶）的氢键，这两个补充氮基存在于脱氧核糖核酸以及连接脱氧核糖核酸与核糖核酸的混合分子中美国传统〔bond〕In each methane molecule there are four CH bonds.每一个甲烷分子中有四个碳氢键。朗文当代〔double helix〕The coiled structure of double-stranded DNA in which strands linked by hydrogen bonds form a spiral configuration.双螺旋：双股DNA的螺旋结构，其中由氢键连接起来的股构成一个螺旋构造美国传统 |
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