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誰能設(shè)計(jì)一個(gè)摘花生的機(jī)器 |
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點(diǎn)評(píng)
成熟花生是長(zhǎng)在地下的,需要先把花生從地下連根一塊挖出來,,才能從花生根上摘下來
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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