名词 keypad:

1. a keyboard that is a data input device for computers; arrangement of keys is modelled after the typewriter keyboard

Keyl凯尔keyn.键；关键；钥匙；答案adj.关键的；主要的vt.键入；用钥匙锁上；为 ... 调音key theorem关键定理key diagram原理草图,工作图key-framen.关键帧key schools重点学校（示范学校）key witness关键的证人Keyserlingk凯泽林克key odorant主要香气keying-onn.按键；键控起始key-pulsen.选通脉冲keypad mode键区模式