How much force it takes to press a button until it clicks or triggers.
What it is
Actuation force is usually given in grams-force (gf) or centinewtons. It is the force at the point where the switch registers, not necessarily the force at the bottom.
Why it matters
Lighter switches are easy to spam; heavier ones feel more deliberate. Spring changes and lubrication can shift it slightly.
Also known as: Operating Force, Press Force, 按压力.
是什么
触发力通常用克力（gf）或厘牛表示，指按键触发那一点所需的力，不一定等于按到底的力。
为什么重要
轻的按键适合连按，重的按键更有分量感。换弹簧或润滑可能会让它略有变化。
又称：Operating Force、Press Force、按压力。
