英语语法分析

Our objective was to explore why Sesamum indicum yield declined severely when planted after Rehmannia glutinosa in crop rotation.

我们的目的是探索为什么在熟地黄轮作中种植地黄后，芝麻的收成会急剧下降。

AIM: To study the serum pharmacochemistry of Radix Rehmannia Glutinosa.

目的：首次研究地黄的血清药物化学。

Objective: To review the development of tissue culture on Rehmannia glutinosa .

前言： 目的：全面了解地黄组织培养方面取得的成果。