释义 |
say·bolt viscosity \ˈsāˌbōlt-\ noun Usage: usually capitalized S Etymology: after George M. Saybolt died 1924 American chemist : viscosity as determined by the number of seconds required for an oil heated to 130° F for lighter oils and 210° F for heavier oils to flow through a standard orifice and fill a 60 milliliter flask |