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1·For color sequential operation display, the duty - cycle is very important for display quality.

时间占空比对于时序混色彩色显示器的显示质量来说，非常重要。

2·Exchanger (heat exchanger) : it is applicable to cool the treatment fluid used to feed pump, it has to be used in the duty-cycle operation of treatment fluid.

换热器(热交换器)：用于冷却供给泵的工作液，在工作液循环使用的过程中，必须具备。

3·NOTE It does not make the reverse operation during the normal duty cycle of the appliance. It may or may not require manual resetting.

在器具的正常工作循环期间，它不得造成反向工作，它可要求也可不要求其具有手动复位的功能。