1,000,000 微秒 = 1秒 1s = 1000ms 1ms = 1000μs 1μs = 1000ns 1ns = 1000ps 1秒(s) = 1000 毫秒(ms) = 1,000,000 微秒(μs) = 1,000,000,000 纳秒(ns) = 1,000,000,000,000 皮秒(ps) =1000,000,000,000,000飞秒(fs)=1000,000,000,000,000,000渺秒(as) 秒的起源 汉朝以前...