Save. You can exchange data, such as contacts, by pairing two Bluetooth-enabled devices, selecting the contacts you want to transfer and sharing them over the Bluetooth connection.ave. You can exchange data, such as contacts, by pairing two Bluetooth-enabled devices, selecting the contacts you want to transfer and sharing them over the Bluetooth connection.
technical-grade - containing small amounts of other chemicals, hence slightly impure; technical-grade sulfuric acid. technical grade. chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions.
EPA Technician Certification. The United States Environmental Protection Agency (EPA) has established a mandatory program that requires all technicians to be certified before performing maintenance, service, repair, or disposal of an appliance that contains refrigerant chemicals. The agency has developed four types of certifications: