sharpening的例句（sharpening在句子中的用法）

• The truing and sharpening methods of CBN wheels are summarized. 综合评述了CBN砂轮的整形和修锐方法,分析了各种方法的特点和应用.
• He cut his finger while sharpening a pencil. 他削铅笔时把手指割破了.
• This knife needs sharpening. 这把刀需要磨了。
• Band saw blunt files are for sharpening band saw blades having rounded gullets. 主要是为了削尖带有圆形管道的带锯.
• The contradictions are sharpening. 矛盾正在加剧.