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求合作發(fā)明一款山地林業(yè)自動(dòng)化或半自動(dòng)化的除草機(jī)和施肥機(jī)!! |
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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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