record player. 1. a device for reproducing the sounds stored on a record, consisting of a turntable, usually electrically driven, that rotates the record at a fixed speed of 33, 45, or (esp formerly) 78 revolutions a minute.
Two-generation approaches can be applied to programs, policies, systems, and research. Programs: Two-generation programs provide opportunities for and meet the needs of parents and their children together.
A two-stroke, or two-cycle, engine is a type of internal combustion engine which completes a power cycle with two strokes (up and down movements) of the piston during only one crankshaft revolution. This is in contrast to a  four-stroke engine , which requires four strokes of the piston to complete a power cycle.wo-stroke engines often have a high power-to-weight ratio, usually in a narrow range of rotational speeds called the power band. Compared to four-stroke engines, two-stroke engines have a greatly reduced number of moving parts, and so can be more compact and significantly lighter.