Terms containing user control block

Subject	English	Chinese
el.	optimizer user control block	优化器用户控制块
el.	user control block	用户控制块
el.	user control block table	用户控制块表
IT	user exit control block	用户退出控制块
el.	user exit control block	用户出口控制块
el.	user queue control block	用户队列控制块
IT	user-queue control block	用户队列控制块