LCAO

例句：

1. 1. The LCAO is a complex system that involves multiple components.
   LCAO是一个复杂的系统，涉及多个组成部分。
2. 2. The LCAO model has been widely used in environmental studies.
   LCAO模型在环境研究中被广泛使用。
3. 3. The LCAO is responsible for managing the company's finances.
   LCAO负责管理公司的财务。