close mapping

例句：

1. 1. The software engineers are working on a close mapping of the database schema.
   软件工程师们正在对数据库模式进行紧密映射。
2. 2. The team is developing a new system that closely maps to the existing infrastructure.
   团队正在开发一个与现有基础设施紧密对接的新系统。
3. 3. The researchers have conducted a close mapping of the gene sequence to identify potential mutations.
   研究人员已经对基因序列进行了紧密映射，以识别潜在的突变。