Unverified80% confidenceDecision RuleTime unknown
裁切外管时长度需预留：前变约露出走线1-2cm弯度，后变末端弯向拨链器需保留平滑弧线余量，宁长勿短；成品套件外管通常约2m可覆盖前后变，裁切后需用尖嘴钳修整并重新塞入内衬
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