Time setting function, simple and quick.
时间设置功能，简单快捷。
According to time or radiant exposure setting countdown timer, Arrow keys facilitate displayed program function and characteristics.
根据时间或辐射曝晒设置的倒数计时器；箭头键便于滚动显示程序功能与特征。
The relation between the setting time of the driving pulse of function synchronization and the power source of bulbs is given and a function synchronizing device is designed.
给出了电视信号与电源的函数同步驱动脉冲的时间定位关系式，设计了电光电视函数同步装置。
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