英语语法分析

It suggests that the tegument of metacercaria is the main absorptive site of nutrients.

结果提示皮层是后尾蚴吸收营养物质的主要部位。

Encysted metacercaria are susceptive to heat and can be killed in boiling water immediately.

此外，蟹体囊蚴对热力敏感，在沸水很快即被杀死。

CrABS were collected from 24 villages in 12 towns and P. westermani metacercaria were detected.

方法选取西塔镇等12个乡镇24个村，捕捉蟹类并检查并殖吸虫囊蚴。