不幸的是，这种“座曲式”结构的键盘早就被“橡胶圆点”式键盘所取代了。后者的键帽下附有小按棒，按键被摁下时按棒就会触动分布在一层塑料薄膜上的橡胶圆点。

The buckling spring method, unfortunately, has long been replaced by the 'rubber dome,' where little sticks on the underside of the keys press down on rubber domes laid on a plastic underlay.

youdao

本实用新型涉及具有平衡装置的按键，包括：键帽，键帽背面设有 卡位部；

The utility model relates to a key with a balancing device. The key comprises a key cap with a catching part on the back surface;

youdao