Determination for end carboxyl in polyester - titrimetric analysis .

聚酯中端羧基含量的测定。

Containing two carboxyl groups per molecule .

二羧基的每个分子中含有两个羧基的。

According to the number of carboxyl group and amino group .

按氨基酸分子中羧基与氨基的数目分。

Pulps - determination of carboxyl content .

纸浆羧基含量的测定法。

The researchers found that they could attach erythropoietin to the carboxyl group , and thus to the antibody .

研究人员发现在羟基上能携带促红细胞生长素，也就是意味着附带在了抗体上。