Unverified80% confidenceDecision RuleTime unknown
螺旋双刀(helical/双螺旋刀头)比单片直刀削出的笔尖更圆润对称、断芯率更低,长期使用寿命更长,适合作为家用主力选择
1
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80%
Confidence
Long-term
Relevance
-
First Seen
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