pallial groove

例句：

1. 1. The engineer carefully measured the pallial groove to ensure it was accurate.
   工程师仔细测量了扶正槽以确保其准确无误。
2. 2. During the assembly process, the technicians carefully aligned the pallial grooves toensure a perfect fit.
   装配过程中，技术人员仔细对齐了扶正槽以确保完美配合。
3. 3. The pallial grooves on the machine tool were precisely cut to meet the precision requirements of the project.
   机床上的扶正槽被精确切割以满足项目精度要求。