- fixed interval reinforcement
- 定期: fix a date regular; at regul ...
- 強(qiáng)化: strengthen; intensify; conso ...
- 不定期強(qiáng)化: aperiodic reinforcement
- 定時或周期強(qiáng)化: fixed interval or periodic reinforcement; interval or periodic reinforcement
- 強(qiáng)化: strengthen; intensify; consolidate 強(qiáng)化黨的領(lǐng)導(dǎo) strengthen the leadership of the party
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