spool roll meaning in Hindi

Examples

1. The Diabolo is a Chinese variant of the yo-yo _ a spool rolls along a string suspended between two sticks manipulated by the performers.
2. The engine used was the twin spool Rolls-Royce / Snecma Olympus 593, a development of the Bristol engine first used for the Avro Vulcan bomber, and developed into an afterburning supersonic variant for the BAC TSR-2 strike bomber.