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- A machine vision system is developed to identify weed and soil background.The hue of the weed images is selected as color eigenvalue.The method of threshold is applied to identify weed and background. 开发了一种计算机视觉系统，该系统选取杂草图像的色度值为颜色特征参数，采用阈值处理技术识别杂草和土壤背景物。
- The slow movement of rock debris and soil down a weathered slope. 蠕动岩石碎片和土壤沿着受风雨侵蚀的滑坡向下缓慢移动
- The yard is a wilderness of weed and heaped of coal. 院子里杂草丛生，煤堆满地。
- I thought I knew every weed and blade in this garden. 我还以为这花园里的一草一木我都熟悉哩。
- Green weed and grey barnacles encrust every part under the sea. 水下的部分则覆满了绿色的海藻和灰色的藤壶。
- Compare earth, ground, floor and soil. 将earth、 ground、 floor、 soil这几个词作一比较.
- Land and soil not seen as an ecological element. 土地和土壤不作为一个生态因子对待。
- A side water and soil raises a side people. 一方水土养育一方人。
- Results Not to abstract plague from ash and soil. 结果尸骨及土壤中没有分离到鼠疫菌。
- Clear the soil of weeds and fork in plenty of compost. 清除土中的杂草，然后叉入大量堆肥。
- Women used to hoe up weeds and loosen the soil around each tree. 旧时的这一天，妇女们会将果园的杂草锄掉，在每棵果树四周松土。
- The rope was befouled by weeds and sticks. 那条绳子与杂草、木棒缠在一起。
- weed and soil 草土
- Her long hair was befouled by weeds and sticks. 她的长头发被野草和枯枝缠住了。
- The loss of water and soil was most serious in this area . 这个地区水土流失最严重。
- He compounded water,sand and soil and formed bricks. 他把水、沙及土掺和起来制成砖。
- But a few weeds and stubble showing last. 只剩些杂草与树根裸露着。
- For a time weeding and manuring were neglected. 有一段时间，锄草和追肥有所忽略。
- Drought and soil erosion had long been a major problem. 干旱和水土流失一直是个老大难问题。
- Now with that rock protection weed and crab grass to form a scab on the green. 在石头周围长满了野草，仿佛绿油油的草坪上有一块伤疤。
