| English | Russian |
| base class library | библиотека базовых классов (A library that contains base classes) |
| class library | библиотека классов (A library of classes, interfaces, and value types that are included in the .NET Framework SDK. This library provides access to system functionality and is designed to be the foundation on which .NET Framework applications, components, and controls are built) |
| Microsoft Foundation Class Library | библиотека Microsoft Foundation Class (A library of C++ classes that forms an object-oriented wrapper around large portions of the Windows API and provides a framework on which to build applications) |
| .NET Framework class library | библиотека классов .NET Framework (A library of classes, interfaces, and value types that are included in the .NET Framework SDK. This library provides access to system functionality and is designed to be the foundation on which .NET Framework applications, components, and controls are built) |
| portable class library | переносимая библиотека классов (microsoft.com Alex_Odeychuk) |
| set of base class libraries | набор библиотек базовых классов (Alex_Odeychuk) |