This pad consists of one thickness of cotton wool and two thicknesses of felt.这个垫子有一层棉花两层呢毡.I wrapped the ice cream in three thicknesses of newspaper to keep it cool.我用三层报纸包裹冰淇淋使其不致变热融化.We produce metal plates and corrug...

n.层( thickness的名词复数 )，浓度，厚（度），最厚的部分...

thicknesses的音标：...