英语语法分析

The white crystals are identified the ammonium polyphosphate (APP) by use of FT-IR.

红外光谱分析此白色晶体为聚磷酸铵（APP）。

Flame retarded fiberglass reinforced PA66 and PA6 were prepared by adding melamine polyphosphate (MPP).

采用聚磷酸三聚氰胺（MPP）分别对玻纤增强的PA66和PA6进行了阻燃。

Thus it can be seen that polyphosphate accumulate is relation ship with rhizobial growth and development.

由此可见，根瘤中多磷酸盐的积累与根瘤菌的生长发育有关。