英语语法分析

When prepared as a dietary supplement, retinol is stabilized as the ester derivatives retinyl acetate or retinyl palmitate.

当制成膳食补充剂时，视黄醇稳定为乙酸视黄酯或棕榈酸视黄酯的酯衍生物。

AIM the purpose is to establish a FTIR method for the assay of the chloramphenicol palmitate polymorph a.

目的：建立红外分光光度法测定棕榈氯霉素a晶型的方法。

Chloramphenicol palmitate has two forms, but only one sufficiently dissolves and is absorbed to be clinically useful.

棕榈酸氯霉素有两种存在形态，但只有一种形态能充分溶解吸收，也因而被临床使用。