通过对这些设备进行编程，当压力水平达到临界值时，就表示需要更换元件了。
With ability to program these devices, reaching a threshold of pressure level indicates it is time to change the element.
通过对这些设备进行编程，当压力水平达到临界值时，就表示需要更换元件了。
With ability to program these devices, reaching a threshold of pressure level indicates it is time to change the element.
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