英语语法分析

Oolite lime sand packs naturally with 40% porosity because the particles are essentially spheroides.

自然堆积的灰质鲕粒砂具有40％的孔隙度，因为其颗粒其本上都是球状的。

Oolite lime sand packs naturally with 40 % porosity because the particles are essentially spheroides.

自然堆积的灰质鲕粒砂具有40%的孔隙度，因为其颗粒其本上都是球状的。

The results of the protoplast fusion between Rhodopseudomonas spheroides and Sacchaaromyces cerevisiae were studied in this paper.

研究了球形红假单胞菌与酿酒酵母菌的原生质体融合条件，并对融合子性能进行了测定。