低速语音编码主要采用参数编码方式，多带混合激励线性预测编码(MELP)是参数编码的主流形式之一。
Parameter coding is the main method of low-rate speech coding and multi-band mixed excitation linear prediction (MELP) coding is one of important parameter coding.
二是，带天井的长斜坡墓道洞室墓成为陪葬墓的主流形制；
The cave tomb with long slope path and yard has been the main form of the accompanied tombs;
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