Merge pull request #254 from alibaba-damo-academy/dev_xw

zhifu gao

2023-03-17 d0b651c7c539e33bd8c31c0ca289bba23e7171d9

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