access way control

Control way

control way of main control room

inference control way

preventive control way

roller way control case

the Stretch Control Way

three way control valve

three-way control valve

Two-way Control

Access Control Block ACB

application control block generation

automatic control block diagram

BCB Bit Control Block

BCH Block Control Header

BCU Block Control Unit

BDCB Block Device Control Block

bit control block

block control