| 释义 | Redwood secondsRedwood secondsn  (General Physics) (functioning as singular) a scale of measurement of viscosity based on the time in seconds taken for fluid to flow through a standard orifice: accepted as standard in the UK in 1886. See also Saybolt universal seconds, Engler degrees  [named after Sir B. Redwood (1846–1919), English chemist who proposed it] |