voiceless sound meaning in English

无声音
无音声

In studying the different methods of indicating the pronunciation of a chinese character by using two other characters between s . 2055 and other dictionaries of rhyming words , the author found what showed in s . 2055 might be some characteristics in oral language at that time , e . g . the voiced sound and voiceless sound use same initial consonant for the voiced sound had been voiceless ; there was misuse for the initial consonant between the group of zhi and the group of zhao
摘要本文通过研究s . 2055与其他韵书不同反切，认为所反映的可能是当时口语的一些特点：浊音声母与清音有混用，浊音已经清化了；知组声母与照组包括二等与三等有相混的现象；东冬钟归字混乱，三部不分；支脂之三韵也有交涉；微韵“蕲”存在之韵的又音； “解”字有平声一读。