Merge pull request #280 from alibaba-damo-academy/dev_dzh

zhifu gao

2023-03-22 8d6bd75d7226c1e03d44243895ffc73f45e4a262

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