Merge pull request #247 from alibaba-damo-academy/dev_lzr

zhifu gao

2023-03-16 216a0ab1e85b29a86501da688b04ef731d1cbb24

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