资料来源 : pyDict

致密矽岩

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Ganister \Gan"is*ter\, Gannister \Gan"nis*ter\, n. (Mech.)
   A refractory material consisting of crushed or ground
   siliceous stone, mixed with fire clay; -- used for lining
   Bessemer converters; also used for macadamizing roads.