The vermifugal effect of tablet was better than of powder .

片剂的 驱虫效果优于粉剂。

The natural intrinsic vermifugal characteristics of tree have been studied in order to probe into the method controlling capricorn beetle .

本文 从树木天然固有的 驱虫特性方面进行研究， 拟探索防治天牛的 新方法。