求翻译：农田耕作之余，李同福发现传统的耖子靠手工操作，既费时费力，又不易操作，效率低下，于是萌生了发明“机动耖子”的想法。从20世纪80代李同福开始不断研究，历经30年，到2010年下半年，“农用机动耖子”终于发明成功。2010年12月，他向国家知识产权局申请国家专利。2011年8月获得“实用新型专利证书”。是什么意思？

Tillage I, Lee with the blessing of the Chao child rely on manual, time-consuming and laborious, and difficult to operate, inefficient, so the initiation of the idea of ​​the invention of the motor Chao child ". Continue to study from the 1980s on behalf of Lee, with the blessing began, after 30 yea

正在翻译，请等待...

正在翻译，请等待...

Farmland in addition to farming, traditional Chao Li Tongfu found children rely on manual, time-consuming and laborious and difficult operation, and inefficient, and the initiation of invention "mechanized Chao" idea. From the Li Tongfu began studying 20th century, after 30 years, the second half of