[KongchangAI]
Unverified68% confidenceTradeoffTime unknown

重量与力臂的权衡:肩背式让搬运者用腿部力量省力约50%,但要求两人身高差不超过约15cm,否则家具倾斜、高个一方承重激增

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68%
Confidence
Long-term
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