He was an inventor himself: he invented a moldboard for plows, a swivel chair, a pedometer, a camp stool, and a copying device, among other things.
2
在熟地上可代替犁进行首次作业。 在未耕地上一次耙深可达18厘米。
It can go on first cultivation instead of plow in ripeland. rabble depth for one time can be up to 18cm in uncultivational land.
3
转动半径小、转动灵活，翻地平整，耕地效果好、犁架强度高，作业效率高。
The hydraulic reversing plough has the advantages of small rotation radius, flexible rotation, leveled soil plowing, good tillage effect, high plough frame intensity and high operation efficiency.
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