Read Edit View history 纳秒 nàmiǎo nanosecond Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 纳秒/納秒 · nàmiǎo · nanosecond 2026/03/04 纳秒 / 納秒 nàmiǎo nanosecond a unit of time equal to one billionth of a second (10^-9 s) 这种传感器的响应速度达到了纳秒级别。 noun created sense Mar 4, 2026, 02:25 AM