| Subject | English | Spanish |
| transp. | engine storage | haz de espera de locomotora |
| comp., MS | Extensible Storage Engine | Motor de almacenamiento extensible (A method that defines a low-level API to the underlying database structures in Exchange Server. Extensible Storage Engine is also used by other databases, such as the Active Directory directory service database) |
| comp., MS | storage engine | motor de almacenamiento (A component of SQL Server that is responsible for managing the raw physical data in your database. For example, reading and writing the data to disk is a task handled by the storage engine) |