这句话逗号后面的that是不是用错了啊?非限制性定语从句怎么能用that引导呢?难道根本不是非限制性定语从句?

这句话逗号后面的that是不是用错了啊?非限制性定语从句怎么能用that引导呢?难道根本不是非限制性定语从句?
Phonetics studies speech sounds,including the production of speech,that is how and speech sounds are actually made,transmitted and received,the sounds of speech,the description and classification of speech sounds,words and connected speech,etc.
不好意，第二个逗号后面应该是that is how speech sounds are actually made。多打了个and

谁写的句子,有点问题.
你先说,谁写的.
再问： 打错了，应该是that is how speech sounds are actually made,这是《星火》专八人文知识上面的。
再答： 这是原来的句子： Phonetics studies speech sounds, including the production of speech, that is how speech sounds are actually made, transmitted and received, the sounds of speech, the description and the classification of speech sounds, words and connected speech, etc. 别的站有： studies speech sounds, including the production of speech, that is how speech sounds are actually made(articulatory phonetics发音语音学), transmitted(acoustic phonetics声学语音学) and received(auditory phonetics听觉语音学), the description and classification of speech sounds, words and connected speech, etc. 两句话比较，后句recieved 之后， 少了the sounds of speech。 不管这俩哪个是对的，注意观察，把这大长句给它瘦瘦身： Phonetics studies speech sounds, the sounds of speech, the description and the classification of speech sounds, words and connected speech, etc. Phonetics studies speech sounds,（已删除 ）, the description and the classification of speech sounds, words and connected speech, etc. 上面的句子是没问题的。 那下面， including the production of speech, 是插入语1， that is how speech sounds are actually made, transmitted and received, 是插入语2。that 指前文的the production of speech 不是that 引导的定语从句，that 代替的不是前面的句子，是前文中的一个词-即the production of speech