... 倒换时间 switching time 区段倒换 span switching 中频倒换 intermediate frequency switching ...
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All that switching about shortens the attention span and lessens your ability to enjoy and be at peace with the task at hand.
在多个目标中切换只会减弱你的注意力，减少享受的乐趣，并干扰手头上的任务。
The tungsten life span is improved 3 to 5 times by reduction of tungsten carbide and decreasing filament cooling rate before switching off the tungsten filament power.
停机操作前采用碳化钨还原技术及减缓钨丝冷却速度，可将钨丝的寿命提高3 ~ 5倍。
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