key punch signature调号
key y signature调号
Key-signature调号
key digital signature public数字式签名公开键
key digital signature private数字式签名私人键
Key Signature tool调号工具
certificateless public key signature无证书公钥签名体制
key-insulated signature密钥隔离
public key signature公钥签名
N（名词） a group of sharps or flats appearing at the beginning of each stave line to indicate the key in which a piece, section, etc, is to be performed 音调符号 [music]