尖板条

例句：

1. 1. She used the sharp edge of the knife to cut the vegetables.
   她用刀的锋利边缘切蔬菜。
2. 2. The chef carefully measured out the ingredients with a straight bar.
   厨师小心翼翼地用直尺测量食材。
3. 3. The carpenter used the straight edge of his saw to make accurate cuts.
   木匠用锯子的直边做精确的切割。