Merge pull request #437 from alibaba-damo-academy/dev_cmz_md

zhifu gao

2023-04-27 56508c42af411d84ffaa621a5379af2c6d4ae3ea

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beam_size: 10
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 0.5
lm_weight: 0.7