Different glands make different sorts of silk to be used for purposes including the manufacture of egg sacs, lining shelters and constructing webs.
Different glands make different sorts of silk to be used for purposes including the manufacture of egg sacs, lining shelters and constructing webs.
不同的腺体制造不同种类的蛛丝，其作用包括制造卵囊﹑划定居所﹑编织蛛网等许多方面。