Merge pull request #276 from alibaba-damo-academy/dev_sx

zhifu gao

2023-03-21 1f0f44bd07b0184313b170d2aa2d0d4025b4e69a

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