Reasonable structure , can be folded , convenient to carry . if as for dead stock , it ' s not practical , and expensive , so it ' s not 结构紧凑，合理，可折叠，方便携带。作为农具的实用价质太低，而造价太高，不是农具。
2.
Design method of farm machine products drop behind the one of manufactured products . to make our country ' s design and manufacturing technology of dead stock to achieve the standard of developed country , to develop parallel with other machine manufacture , this article introduce cad , optimization design , computer simulation technique into the design of the ditcher , to make its design more reasonable , much higher quality to bring social benefit , economic benefit , ecological significance 我国农业机械产品的设计方法相对工业产品来说比较落后，为了使我国农机设计制造技术达到发达国家水平，与其它机械制造业平行发展，本文将计算机辅助设计、优化设计、计算机模拟技术引用到该机具的设计中，使该机具的设计更合理、更高质，使它尽快地产生社会效益、经济效益、生态效益。
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