尿道切开有槽探杆

grooved pully

grooved friction wheel

grooved rail, composite

glyptolith【地质】;wind-cut stone【地质】;wind-grooved stone【地质】

grooved tape on cinematograph film

grooved and tongued joint【木】;match joint【木】;rebated grooved and tongued joint【木】

grooved drum

centreless grinding with grooved abrading blocks