- 双语例句
1、
The most abundant bases are cytosine, thiamine , and uracil ( pyrimidines ) and adenine and guanine ( purines ) .
最丰富的碱基是胞嘧啶, 胸腺嘧啶, 尿 嘧 啶,腺嘌呤和鸟嘌 呤.
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2、
It also donates an amino group in synthesis reactions, e . g . the synthesis of purines and pyrimidines.
还可参加合成反应生成一系列的氨基酸, 例如嘌呤和嘧啶的合成.
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3、
Glycine is necessary for the synthesis of purines, and is a basic compoent of PORPHYRINS.
甘氨酸在嘌呤的合成中是必不可少的, 也是卟啉的基本组成.
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4、
Purines and pyrimidines have widespread and specific action in many tissues of both invertebrates and vertebrates.
在脊椎类和无脊椎类动物的多种组织中,嘧啶与嘌呤类物质具有广泛的特异性作用.
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