Merge pull request #304 from alibaba-damo-academy/dev_lhn

zhifu gao

2023-03-29 37c9e0eacb6c7a04f827e9d327fce890b61a8040

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beam_size: 10
penalty: 0.0
maxlenratio: 0.0
minlenratio: 0.0
ctc_weight: 1.0
lm_weight: 0.7