1, valve (fá): acoustic shape. There was a cutting sound from the door. Original meaning: valve reading. That is, the pillar erected by the butler on the left outside the door.
Dedicating sincerity and enthusiasm and accumulating value is also our time in Zhixia. -"Old Tang Book Zhang Xiancheng Biography"
Ren and Shang Shukuan's descendants are all rich and expensive, which is really a famous valve. -Ouyang Xiu's "New Tang Book Liu _ Biography"
Valve reading: a person or group that has a special dominant position in a certain aspect by virtue of power.
Chaebol; Party valve; Learn valves; Warlords; Valve.
2. Threshold (y): threshold, threshold, generally refers to the boundary or range.
The minimum input value that can produce corrective action in the automatic control system; The lowest value of stress tissue response caused by stimulation.
It can be seen that the threshold is actually just a spelling mistake of the threshold. There is no word threshold, but many people don't know the threshold word of this threshold. As a result, "threshold" became popular.
Many people don't know the threshold word of the threshold, so they change the threshold into a threshold that sounds close to the font and is easy to remember and use. It is also possible that some authoritative books have used the threshold and have been handed down.
The current default threshold is the threshold. There is no need to dwell on this matter. As long as we know that the threshold can replace the threshold to represent the value of the boundary between the two ends. The threshold in finance, like other fields, also represents the critical point and boundary.