ur

ur的英语例句

1. Synthesis method of 6 - methyl uracil was studied.

   着重介绍了 6- 甲基脲嘧啶的合成方法.

2. Uracil -- a pyrimidine found in RNA that base - pares with adenine.

   尿嘧啶 -- 核糖核酸中的一种嘧啶,与腺嘌呤形成碱基对.

3. 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.