Source: Computational Materials Science, Volume 267
Tenting raises the middle of the keyboard up, so your hands move closer to a “handshake” position. Alice keyboards usually angle up towards the middle and always to a fixed degree, since the two sides are connected. Split boards often let you adjust the degree of tenting, going from flat to subtle to extreme lift.
，这一点在同城约会中也有详细论述
self.tags = tags or []，更多细节参见51吃瓜
Source: Computational Materials Science, Volume 266。同城约会对此有专业解读