Unverified85% confidenceDecision RuleTime unknown
帽子内圈周长应比宠物实测头围（眉骨上方一圈）大2-3cm，预留手指并排能塞入两指的松紧度，过紧会压迫耳软骨导致宠物甩头抗拒
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Unverified帽子头围应比宠物实测头围大2-3cm（松紧带款）或完全等于（硬边款），预留手指能塞入两指的宽松度，否则宠物会因压迫感强行抓挠脱帽91% similarUnverified宠物帽子尺码需以头围+耳距双重测量，头围放松量留2-3cm，过紧会压迫耳根导致宠物强烈抗拒抓挠89% similarUnverified帽子头围内径应比宠物实际头围大1-2cm，过紧会压迫耳部血管导致宠物甩头抗拒，过松则易脱落88% similarUnverified软头套尺寸应按颈围而非体重选择：软头套内圈周长需比宠物实际颈围大2-3cm，过紧会压迫气管，过松则宠物易挣脱或转头舔到伤口85% similarUnverified圈体高度应超过宠物鼻尖到脖颈的距离，颈围测量后周长应能容纳2根手指的宽松度（约2-3cm余量），过紧会导致颈部勒伤和呼吸不畅84% similar
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