| Subject | English | Portuguese |
| el. | class C amplifier | amplificador de classe C |
| construct. | class C fly ash | cinzas volantes hidráulicas |
| comp., MS, Braz. | Class C IP address | endereço IP de classe C (A unicast IP address that ranges from 192.0.0.1 to 223.255.255.254. The first three octets indicate the network, and the last octet indicates the host on the network. Network Load Balancing provides optional session support for Class C IP addresses (in addition to support for single IP addresses) to accommodate clients that make use of multiple proxy servers at the client site. Class-based IP addressing has been superceded by Classless Interdomain Routing (CIDR)) |
| el. | class C operation | funcionamento em classe C |
| el. | class-C stage | andar em classe C |
| mater.sc., chem. | fire,class C | fogo,classe C |
| comp., MS, Braz. | Generic C++ Class Wizard | Assistente da Classe C++ Genérica (A wizard that adds a C++ class to a project. This generic C++ class does not inherit from ATL or MFC) |
| el. | high-frequency transistor class-C operation | funcionamento do transístor em classe C às altas frequências |
| el. | high-frequency-transistor class-C noise | ruído do transístor em classe C às altas frequências |