Machinery for forestry - portable hand - held brush cutters and grass trimmers with backpack mounted combustion engine power source - safety requirements and testing 林业用机械.背包式内燃机电源便携式手持灌木切割机和剪草机.安全要求和试验
For example , if i have a site that sells lawnmowers , and a blog about lawnmowers has posted a link to my site , it helps my score even more if the link text ( also known as anchor text ) is lawnmowers 例如，我有个卖剪草机的网站，一个关于剪草机的博客链接到我的网站，这会帮助我获得更多分数，甚至比链接到剪草机的文件（即可是学术文章）还多。
Any organic matter can be used such as sugar cane mulch ( looks like straw ) ; hays like lucerne , oats or barley ; finely ground bark ; lawn clippings and leaves ( always mixed so they break down and don ' t actually repel water ) ; sawdust ; manures - even old clothing or newspaper can be recycled to conserve moisture 覆盖物可选用任何有机物质，比如甘蔗杆（看起来很像麦杆） 、干草（如紫花苜蓿） 、燕麦杆、大麦杆、碎树皮、剪草机剪下的草、树叶（将它们混合起来以免排斥水分） 、锯末、肥料，甚至旧衣服、报纸等等，都可用来保持湿度。
For reducing dead - reckoning location error of doppler velocity log and compass , this thesis studies two methods , exponential flatness arithmetic and common flatness , gives the emulating results in the different tracks , proves that lawnmower is a efficient method of decreasing location error 本文研究了减小推算辅助导航系统定位误差的指数加权平滑法和一般平滑法，并结合计算机给出了在同一轨迹下，两种定位方法的区别；并且还给出了不同轨迹下的定位结果，证明了走剪草机轨迹是一种有效的减小定位误差的方法。
