线状地物 meaning in Chinese

align feature

For the operationally cotton monitoring using remote sensing in china ministry of agriculture , a sampling method for linear features extraction and measurement to reduce errors was developed by the authors . the theory approaches and field experiment are introduced in this paper and the results show the method can efficiently improve the results of cotton area estimation using landsat tm
分析了线状地物对作物面积提取精度影响的机理，进行了线状地物扣除实验方法的技术路线与实施过程研究，经实际验证该方法可消除绝大部分线状地物对棉花面积提取精度产生的影响，提高了棉花面积的提取精度。
Based on the object - oriented technique , this study defines four types of geographical event , i . e . expansivity , contraction , rebirth and vanishment events for management of land use data . and it further designed an object - superposition data updating model based on the land use feature of point , line and polygon ， which would take the advantage of the gis overlay function to effectly implement of updating spatial and attribute data
从面向对象的方法入手，定义了引起土地利用变化的扩展、收缩、新生与消亡四种地理事件，并分别按点状地物、线状地物和面状图斑的土地利用实体特征设计了对象叠加更新模型，从而能利用gis强大的空间分析能力，来有效地实现空间数据和属性数据的一致性更新。