Make use of adjustable fan unit system touching switchgear adjust voltage keep the wind speed of working area always in perfect status.
采颐可调风量风机系统，轻触式开关调节电压，保证工作区风速始终处于理想状态。
2
To design and manufacture a constant-source with adjustable amplitude value and the test system, and to realize the examination of zener diode voltage drift parameter, is very important.
设计制作出一个幅值可调的恒流源及其测试系统，实现稳压二极管电压漂移参数的检测，至关重要。
3
Make use of adjustable fan unit system, touching switchgear adjust voltage, keep the wind speed of working area always in perfect status.