Unverified90% confidenceTradeoffTime unknown
棘轮式(ratchet)张紧力可达蝴蝶扣的3-5倍，适合重货和长途；蝴蝶扣(cam buckle)操作快但张紧力有限，仅适合轻货、易碎品或短途，避免过度张紧压坏货物
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Long-term
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