To dig in the ground to look for outdated structures or objects which have been buried for a very long time; to find something by digging in this manner 近两年机械键盘的“麻将音”备受欢迎，各个厂家还会在键盘内部使用硅胶、poron棉、泡棉等材质填充键盘内部的空隙，从而使键盘的声音更“扎实”。（一般厂商会称之为消音结构） With its protruding jaws it excavates its winding burrows and with its bro... https://pingdirapp43.directoryup.com/top-level-category-1/bess-utility-solutions