单词	picosecond
释义	pi·co·sec·ond (pēkə-sĕk′ənd, pī-) n. Abbr. ps or psec One trillionth (10-12) of a second.
随便看	sequestra sequestrant sequestrate sequestration sequestrum sequin sequoia Sequoya Sequoyah sera serac seraglio serai seral Seram Seram Sea Seram Sea serape seraph seraphic seraphical seraphically Serapis Serb Serbia

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