sharpening

boundary sharpening

[计] 边界锐化

carborundum sharpening stone

[化] 金刚砂磨石; 金刚砂油石

image sharpening

[计] 图象锐化

resharpening

(resharpen 的现在分词) 再磨锐, 重新磨快, 重新变锋利

sharpening technique by differentiation

[计] 微分锐化技术

sharpenings

(sharpening 的复数) n. 加强；刻石；削尖；锐磨

tool sharpening

[机] 磨刀刃