Merge pull request #353 from alibaba-damo-academy/dev_lyb

zhifu gao

2023-04-14 ddfcd68c803c226f4b2a60b0666b29c24d04c259

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