sectorial spherical harmonics function

例句：

1. 1.The company has a sectorial structure that allows for efficient decision-making.
   该公司拥有一个部门结构，使得决策过程高效。
2. 2.The sectorial committee was formed to address the urgent issue of water shortages.
   该部门委员会成立是为了解决水资源短缺的紧迫问题。
3. 3. The sectorial manager is responsible for overseeing the day-to-day operations of the department.
   部门经理负责监督部门的日常工作。