Merge pull request #441 from alibaba-damo-academy/dev_lhn

hnluo

2023-04-28 6013d3c4a9afa81f8f7bdca4e3d9fe84639eb39b

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