单词	二道旋塞
释义	二道旋塞double cut-out cock
随便看	input/output processor input/output processor--iop input/output processor，iop input/output program communication input/output program communication block input/output program status word location input/output pulse input/output queue input/output queue backward pointer input/output queue forward pointer input/output read input/output real-time control input/output record block input/output redirection input/output reference input-output referencing input-output register input/output register input-output register (ior) input-output register{=ior} input-output request input/output request input/output request subroutine input/output request word input/output routine