Observers from Earth can see two types of eclipses â eclipses of the Sun (solar eclipses), and eclipses of the Moon (lunar eclipses). These occur when the Sun, Earth and Moon align in a straight or almost straight configuration.
TRR may refer to: 1  China Bay Airport near Trincomalee, Sri Lanka. 2  Tamper-resistant receptacle, child-safe power receptacle required in new and renovated dwellings since the U.S. 2008 National Electrical Code.3  Target row refresh, a hardware feature of DDR4 used to prevent the row hammer effect from occurring. Tamper-resistant receptacle, child-safe power receptacle required in new and renovated dwellings since the U.S. 2008 National Electrical Code. 2  Target row refresh, a hardware feature of DDR4 used to prevent the row hammer effect from occurring.
The Telecommunication Relay Service (TRS) is a free service that enables persons who are deaf, hard-of-hearing or speech-impaired to use their TDD or TTY to place calls to and receive calls from hearing people. It also enables hearing people to call TDD/TTY users. To use TRS dial 711 (just like you would dial 911 for an emergency). Typed messages from a TDD/TTY are transmitted to a communication assistant who voices them to hearing persons. Hearing persons' messages are voiced to the communication assistant who relays them to the TDD/TTY printout or display. Calls can be placed 24 hours a day, seven days a week.