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上蜂园 发表于 2016-10-24 10:38 5 _& G8 x/ h9 k) J- _: V& V& f f# t跷跷板方案也行不通,当里面有蜂在上面时,外面的蜂就不能进来,活门就变死门了
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上蜂园 发表于 2016-10-24 10:17 % L0 g* B2 z; t3 I" Z4 ~" f6 s很难 # v5 G% @. I3 }+ K! B9 w7 A一、材料问题:踏板为弹性塑料片要做到,一只蜜蜂一蜡娥的重(还有风压,雨滴,水的吸力等)就能开关 ...
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