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.
MRR: Maximum Rock'n'Roll (print zine) MRR: Monthly Recurring Revenue: MRR: Mandatory Reporting Rule (US EPA) MRR: Mean Reciprocal Rank: MRR: Mark Release Recapture (animal population studies) MRR: Mission Readiness Review: MRR: Market Research Reports: MRR: Minimum Rediscount Rate: MRR: Marginal Rate of Return: MRR: Monitoring, Recordkeeping, and Reporting: MRR: Motorized Rifle Regiment