农机工程师建设“无人农场”，给农业插上科技的翅膀 第6集 粮丰安天下 | Cctv「征程」
Synopsis
本集主要内容：他们给农业插上科技的翅膀，保护黑土地，让北大荒变北大仓。他们攻克种源危机，推进种业振兴，让中国饭碗里有 ...
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