英语语法分析

Objective To clone new panallergen genes from pollen of Cinnamomum camphora.

目的从樟树花粉中克隆泛变应原基因。

The fourth category has 32 plants of Cinnamomum camphora as the second grade national key protective plants.

第四类有二级国家重点保护野生树种樟树32株。

Objective: To study the extraction technology of volatile oil of spontaneously-shedding leaf of Cinnamomum camphora.

目的：研究樟树自然脱落叶挥发油的提取工艺。