Merge pull request #226 from alibaba-damo-academy/dev_dzh

zhifu gao

2023-03-14 e0bd877ac08d6ef61c23bdc9fd2d6d7624ef2b4f

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