Unverified85% confidenceFactTime unknown
刀刃采用Scandi（斯堪的纳维亚）研磨适合削木做羽毛棒引火和木工，易于野外磨修；Full Flat平磨切割省力更通用；重劈砍选凸磨（Convex）抗崩刃
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Unverified刃面研磨类型影响用途：Scandi磨（斯堪的纳维亚）削木/制作引火物最佳且易磨；平磨（Full Flat）切割省力通用；凸磨（Convex）劈砍抗崩刃，选刀应先明确主用途91% similarUnverified刀刃截面研磨(grind)影响用途：Scandi磨法(北欧平磨)最适合刨木生火且易现场磨利，凸磨(convex)抗撬劈但难打磨，全平磨(full flat)切割锋利偏通用81% similarUnverified锯齿刀背在实际野外几乎无用——切割绳索易卡、锯木效率低于专用折叠锯，反而占据刀背用于击打/引火的空间；平直刀背才能配合火石打火并作batoning劈砍支点79% similarUnverified锯齿刃切割绳索、树枝快但几乎无法在野外磨利，且不适合削木片生火；直刃可全刃磨利、易保养、通用性强，纯户外优先选全直刃79% similarUnverified引火柴应选已劈成细条状（手指粗细）的产品，未预劈的木块需自行加工，否则难以快速引燃78% similar
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