This solution is more flexible than the Timer pattern, as it goes full speed if the user doesn't do anything but doesn't keep the machine from being responsive otherwise.
The personnel are separated into part-timer and full-time staff.
全体职工分为非全日工制和全日制工作人员。
3
The principle is that the system adjustment signals are changed into shift-pulses via a timer so as to trigger SCR for three-phases full-controlrectification.