Advanced Unit Base的用法和样例：
- The bolt holes are in the unit base.
- Advanced units are constantly emerging.
- An advanced unit cell model was put forward to evaluate the settlement of deformable pile under flexible foundation.
- I was street municipal government granted "advanced unit of the population of family planning work".
- The track system trolley features a unique dovetail mounting design which securely holds the power unit base in position for maximum accuracy.