Unverified80% confidenceDecision RuleTime unknown
窗宽超过2米或面料较重（如全遮光涂银）时选拉珠（链条）操控优于弹簧回卷，弹簧机构长期使用易失力、卷不平整；宽窗做成一整幅还会中间下垂，建议分幅
1
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80%
Confidence
Long-term
Relevance
-
First Seen
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