德: virtue; morals; moral charac ...音系: college or university school of music黄德音: huang deyin音系层: phonological level音系学: phonology英音系: english phonology艾赫德音乐公司: ahed music corp., ltd播音系统扩音系统: public address systemwindows声音系统: windows sound system伴音系统: sound system播音系统: public address system超低音系统: x extra ba system; xbs exta bass system; xbs extra bass system词汇音系学: lexical phonology德语音系学: german phonology发音系统: articulatory system; pronunciation system放音系统: sound reproducing system非音系文字: non-phonological writings弗斯音系学: firthian phonology辅音系统: consonantism隔音系数: acoustic reduction factor; acoustical reduction factor; coefficient of sound insulation; sound insulation coefficient; soundproof coefficient话音系统: voice system节律音系学: metrical phonology扩音系统: public address system (pa); public-address system (pa system); publicaddre ystem(pa); sound amplifying system; sound reinforcement system丽音系统: nicam system; system, nicam临川音系: and linchuan yinxi