Merge pull request #252 from alibaba-damo-academy/dev_wjm

hnluo

2023-03-17 2f92844afad4da59bfe3bf09bb35e66204fe1ad6

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