论文部分内容阅读
由吉林省舒兰市水曲机械厂研制成功的ILS-220型双向双铧犁已通过省级鉴定。与单向犁相比,该犁能进行往返式作业,无开闭
The ILS-220 bidirectional double plow that was successfully developed by Shulan Shiqu Machinery Factory in Jilin Province has passed the provincial appraisal. Compared to a one-way plow, the plow can be reciprocated without opening and closing