英语语法分析

Serials of naphthalin and tripolycyanamide have low water reducing efficiency.

萘系与三聚氰胺系减水率较低。

Distillation is effective to remove diazo compound and 2-naphthalin-1-sulfonic.

蒸馏是去除重氮化合物、2萘胺1磺酸干扰的有效方法。

The article is mainly about chronic toxic effect of naphthalin on human body and the index of subclinical and objective detection.

本文主要探讨萘对人体的慢性毒性效应和亚临床客观检测指标。