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.

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但是，如果他们不用廉价的火，又能要用什么——电动割草机？链锯？还是拖拉机？

But if they do not use fire, which is cheap, then what are they going to use - strimmers? Chainsaws? Tractors?

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为输送机，锯，烘干机和其他设备进料，处理木材，带墙面板，单板，胶合板及类似木制品。

Feed conveyors, saws, drying machines and other equipment to process lumber, shingles, veneer, plywood and similar wood products.

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