There are two layers of protein mem

There are two layers of protein membrane between the eggshell and egg white to protect against bacterial invasion of the egg.

Results (Chinese) 1:

有蛋壳和蛋清，以防止鸡蛋的细菌入侵之间的蛋白质膜的两层。

Results (Chinese) 2:

蛋壳和蛋清之间有两层蛋白质膜，以防止细菌入侵鸡蛋。

Results (Chinese) 3:

蛋壳和蛋清之间有两层蛋白质膜，以防止细菌侵入鸡蛋。