英语语法分析

Anisakis simplex larvae is the most important causative agent of anisakiasis.

异尖线虫病的主要致病源是简单异尖线虫幼虫。

An investigation of Anisakis simplex larvae, the most important causative agent of anisakiasis, in marine fishes caught in Bohai sea was carried out in order to detect their infectivity.

为了了解渤海各种鱼类中人体异尖线虫病的主要致病源——简单异尖线虫幼虫的感染情况，进行本调查。