Economic Theory Center
Electrical Till Corporation
Electrical Trade Council
Electronic Thermal Conductivity
Electronic Time Card
Electronic Tuning Control
EMEA Technical Center
English Translucent China
Environmental Technology Center
Environmental Transport Code
Estimated Time to Completion
Ethyl Technical Center
Ethylene Carbonate
European Tool Committee
European Topic Center
European Translations Center
Experimental Techniques Center
Extended Text Compositor
Education Technology Center
Education, Travel & Culture
Educational Travel Conference
Emergency Travel Certificate
Emerging Technologies Committee
Employment Training Centre
Empresa de Transporte de Cargas
Encontro dos Twitteiros Culturais
Endogenous Technological Change
Energy-driven Tree Construction
Engineering Technology Company
Entity Tender Committee
Epistle to the Cledonius
Erosión, Tecnología y Concentración
Evergreen Tutoring Center
Extra-Tropical Cyclone