单词	程序请求键
释义	程序请求键program request key，PRK
随便看	moving staircase moving staircase (escalator) moving stairway moving submarine haven moving summation process moving surface ship haven moving system moving-tape system moving target moving--target moving-target moving target detection moving target detection{=mtd} moving target detector moving target detector (mtd) moving target gain moving target indication moving-target-indication moving target indication (mti) moving target indication {= mti} moving target indication radar moving target indicator moving-target indicator moving target indicator (mti) moving target indicator{=mti}