But this time whether replacement circuit boards, or press the button, they can not return to position.
但是这次不管更换电路板，或者是按下按钮，都无法回位。
According to the desire of BTB's function, the paper realizes a pseudo-LRU replacement algorithm and two-bit bimodal algorithm. The circuit has advantages in its simple structure, and small space.
针对BTB部件的功能需要，采用了随机替换算法以及两位饱和计数器算法，并给出电路实现，其电路结构简单，占用面积小。
Keyboard input realize temperature size adjustment, set up fresh function, realization fan circuit of indoor air for replacement.
键盘输入实现设置温度值的大小调理，风扇电路实现新风功用，对室内空气停止改换。
Keyboard input realize temperature size adjustment, set up fresh function, realization fan circuit of indoor air for replacement.
键盘输入实现设置温度值的大小调理，风扇电路实现新风功用，对室内空气停止改换。
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