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.
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