Unverified82% confidenceTradeoffTime unknown
球体重量与滚动阻力权衡：过轻的球（<50g）小型宠物一推就滚太远易撞家具且出粮太快，加配重底座的不倒翁式漏食球滚动可控、出粮节奏慢，更适合小型犬和猫
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82%
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Unverified球体重量与滚动阻力权衡：太轻的球滚动过快粮食全撒出、宠物追不上易受挫，太重（＞300g）小型犬猫推不动会放弃，理想是球稍重于自身推力临界点让宠物需用力但能推动92% similarUnverified球体重量决定滚动阻力：过轻的空心塑料球被拍一下就滚太远藏到家具底下，加配重底座或半重心设计（不倒翁式）更适合小型犬猫持续互动88% similarUnverified食物容量与滚动难度的权衡：大容量球装满后重、滚动阻力大、宠物易受挫放弃；建议每次只装1/3-1/2容量，让球保持轻便可推动84% similarUnverified球体重量与滚动阻力需匹配体型：猫和小型犬选轻质（＜80g）低阻力款，中大型犬可选加重款（150g+）增加推动难度，重量过大会导致小型宠物推不动而放弃84% similarUnverified球体重量与宠物体型需匹配：小型犬/猫选80-150g轻量球，大型犬选250g以上加重球，过轻会被大型犬叼起甩动导致粮食全撒，过重则小型宠物推不动81% similar
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