Read Edit View history 皮秒 pímiǎo picosecond Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 皮秒 · pímiǎo · picosecond 2026/03/04 皮秒 pímiǎo picosecond picosecond, ps, 10^-12 s 激光脉冲的持续时间通常以皮秒为单位。 created sense Mar 4, 2026, 02:25 AM