Grindstones
[graɪnd,stəʊnz]
例句:
- For the dressing of the faces of grindstones, special forms of cutting machines have been devised. 威廉·亨利·杜利特. 世纪发明.
- Shipments were growing larger, and materials like grindstones, bought outside, had to be brought from the canal to Ilion Gulph. 佚名. 神奇的知识之书.
- The power was taken from a water wheel in Steele’s Creek, and the first grindstones for smoothing down the welded edges in gun barrels were cut from a red sandstone ledge up the gorge. 佚名. 神奇的知识之书.
塞西莉整理