英语语法分析

Objective: To set up the identification system for Ramulus Rubi.

前言：目的：建立悬钩子木生药鉴定体系。

ObjectiveTo optimize the ultrasonic extraction technology of flavonoids from Ramulus Mori.

目的优选超声提取法从桑枝中提取总黄酮的工艺条件。

Aim: To observe the antagonistic effect of different solution extracts of ramulus viscin on platelet-activating factor (PAF).

目的：观察中药槲寄生不同溶剂提取物对血小板活化因子（PAF）的拮抗作用。