三氟乙酸吡啶鎓；

Trifluoroacetic acid pyridine salt;

采用氨基色谱柱，流动相为0.1%三氟乙酸-乙腈(梯度洗脱)。

NH2 column was used with the mobile phase of 0.1% trifluoroacetic acid-acetonitrile by gradient elution.

以三氟乙酸、乙醇为原料，以浓硫酸为催化剂，对反应精馏法制备三氟乙酸乙酯的过程进行了实验研究。

Preparation of TFAE through reactive distillation process had been researched, with trifluoroacetic acid and ethanol as raw materials, concentrated sulfuric acid as the catalyst.

三加三等于六。

Three and three is six.

她三十五岁左右—确切地说是三十六岁。

She's in her mid-thirties—thirty-six to be exact.