land levelling machine造句

• Study and test of hydraulic control device in laser land leveling machine
  激光平地机液压控制装置的设计与试验
• Baby seeding direct sowing with re - paper covering were introduced in this paper in this study , many experiments were done include leveling the land of 20 hm2 paddy field experiment by using laser controlled land leveling machine in jing ertun village of liaoyang city , testing and summarizing the rules of breeding the baby rice used to sowing , investigating the growing of rice during its whole growth duration , testing and analyzing the performance both a kind of baby rice seedling direct planting machine and the baby rice seedling - throwing machine
  本文还介绍了水稻纸膜覆盖直播种植技术的种植方法。本文通过在辽阳市太子河区景尔屯村的20hm ~ 2水田应用激光设备进行平地作业，对乳芽培育的工艺规范进行了试验和总结，跟踪调查了水稻全生育期的生长状况，分别对一种水稻乳芽直播种植机械和乳芽抛播机械进行了性能检测与分析。