[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

线圈装订(spiral)能180度平摊适合书写但线圈易变形且不便放包内;线装/胶装(sewn/lay-flat)美观耐带但便宜的胶装本摊不平,选带缝线书脊的lay-flat工艺兼顾两者

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80%
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Long-term
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