involucre造句怎么写

The fluctuations of protein and amino acide contents in the development process of involucre, ovary and cotyledon were studied between empty shell's chestnut and normal chestnut.

the amounts of 18 kinds of amino acids in ovary and cotyledon were higher than that in involucre;

In involucre,amino acids content of normal chestnut had a regression equation with significant correlation,other's regression equation of contents change did not gain a notable level,also hadn't have a apparent difference between the empty shell and normal chestnut.