英语语法分析

Beginning in 1999, rosiglitazone maleate and pioglitazone hydrochloride were approved for use.

从1999年开始，马来酸罗格列酮和盐酸匹格列酮被批准使用。

CONCLUSION Rosiglitazone maleate was well absorbed at the middle and lower segments of intestine in rats.

结论罗格列酮马来酸盐在肠道中下部吸收较好；

Under the influence of heat, the maleate structure formed in the esterification tends to isomerize into fumarate.

树脂在酯化反应中生成的顺丁烯二酸酯的结构受热的影响会产生顺、反异构化反应。