Unverified88% confidenceDecision RuleTime unknown
松软沙地/雪地需要长度≥30cm的螺旋钉或宽面沙地锚，普通18-20cm直钉在沙土中固定力几乎为零，风一吹即松脱
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
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