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主要研究成果包括：1 .首次设计了免耕播种机锯切防堵装置。
The research results included: 1. A new sawtooth anti-blocking mechanism of no-tillage planter has been developed at first.
试验结果表明：锯切防堵装置结构新颖，功率消耗低，可作为免耕播种机的防堵装置。
The testing results showed that the new sawtooth anti blocking mechanism had an excellent anti blocking character and low consumption of power and could be used for no tillage planter.
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