微微秒picosecond: 百萬(wàn)分之一微秒; 皮可秒; 皮秒; 沙秒; 微微秒picosecond holography: 微微秒全息照相術(shù)picosecond laser: 微微秒激光器picosecond pulse: 微微秒脈沖picosecond spectroscopy: 微微秒光譜學(xué)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯