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《rbc09: computer vision using ruby and libjit》
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教程列表：
rbc09: keynote yukuhiro matz matsumoto
rbc09: dsls code generation and new domains for rb
rbc09: code of art jeff casimir
rbc09: rediscovering coding as a hobby
rbc09: bits bytes and blobs brian mitchell
rbc09: computer vision using ruby and libjit