notching

英文解釋：

動詞 notch:

1. cut or make a notch into
   同義詞：notch
2. notch a surface to record something
   同義詞：notch

中英例句：

1. A plain or notched, often wedge-shaped piece of wood or metal designed to hold parts of a machine or structure in place or provide a bearing surface, usually adjusted by a screw or key.
   扁柱，夾條，凹字形楔一種平的或有凹的經常是一塊楔形的木頭或金屬，用來在一定地方夾住機器或結構的各部分或提供軸承的表面，通常是由螺絲或鑰匙來調整
2. The notch cut into a key that corresponds to such a ridge.
   鑰匙的榫槽鑰匙上切割出的對應鎖眼的凸槽