a fiducial mark的用法和样例：
- Recognition mark provided next to the placement position for the object of placing IC components (mainly QFP and BGA) with high accuracy. This mark is also called Local Fiducial Mark.
- That was just a lot of hot air what Mark said.
- The public scandal left a black mark on his career.
- Has she ever written a letter to Mark?
- He buy a block of share in mark and spencer.