API donut

短语

发音

UK /ˌeɪpiːaɪ ˈdəʊnʌt/
US /ˌeɪpiaɪ ˈdoʊ(ˌ)nʌt/

词形变化

API donuts 复数 API donuts

释义与例句

n.
  1. 1.

    An information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP).

    美国 汽车 交通

词源

From API + donut; from American Petroleum Institute, and its shape.

来源：wiktionary