subroutine level

Subject	English	Chinese
el.	interrupt level subroutine	中断级子程序
space	multi-level subroutine	多级子程序
tech.	multiple level subroutine call	多级子程序调用
tech.	multiple subroutine level	多子程序级
space	one level subroutine	一级子程序
tech.	one-level subroutine	一级子例行程序
tech.	one-level subroutine	一级子程序
tech.	subroutine level	子程序级
IT	three-level subroutine	三级子例程
tech.	three-level subroutine	三级子例行程序
space	two level subroutine	二级子程序
IT	two-level subroutine	二级子例程
tech.	two-level subroutine	二级子程序
tech.	two-level subroutine	二级子例行程序