erasing record

• 消去记录

erasing record的用法和样例：

例句

1. Two boundary pointers on each voxel record solid boundaries, thus the extents of a solid along every voxel row can be easily obtained using the pointers.
   我们在每一容积素上使用边界指标去记录边界，藉此容易地获得实体在每一容积列的范围。