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。
Make use of adjustable fan unit system touching switchgear adjust voltage keep the wind speed of working area always in perfect status.
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。
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.
采用可调风量风机系统，轻触式开关调节电压，保证工作区风速始终处于理想状态。
Make use of adjustable fan unit system, touching switchgear adjust voltage, keep the wind speed of working area always in perfect status.
采用可调风量风机系统，轻触式开关调节电压，保证工作区风速始终处于理想状态。
Make use of adjustable fan unit system, touching switchgear adjust voltage, keep the wind speed of working area always in perfect status.
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