Merge pull request #293 from alibaba-damo-academy/dev_zly

zhifu gao

2023-03-24 5c4bd2b718d5f2935ea6609b5051c4182b8b3c50

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