the shell of a clam, formed of two roughly equal valves with a hinge 蛤壳 ■a thing with hinged parts that open and shut in a manner resembling the parts of such a shell, such as a kind of mechanical digger, a portable computer, or a box for takeaway food 蛤壳状物件(如挖泥器、笔记本电脑、快餐盒) some clamshells offer full desktop power. 提供全台面动力的笔记本电脑。 [as modifier]a clamshell lid. 快餐盒盖。