您要查找的是不是:
- DISCUSSION ON SOIL EROSION FACTOR AND ECOLOGICAL RESTORATION OF KARST MOUNTAIN AREA IN GUIZHOU 贵州喀斯特山区水土流失因素与生态修复对策探讨
- Research on the Characters of Soil Erosion Factor and Prevention Measures in the Small Watershed of Mountain Areas in the North Fujian 闽北山区小流域土壤侵蚀因素特征与防治措施效益研究
- soil erosion factor 土壤侵蚀因素
- The shelter belt halted the soil erosion. 防护林带防止了水土流失。
- This will help to prevent soil erosion. 这可以有助于防止水土流失。
- Crop rotation helps prevent soil erosion. 农作物轮作有助于防止水土流失。
- NPS models application in soil erosion simulating. 非点源污染模型在土壤侵蚀模拟中的应用及发展动态
- Mechanism of soil erosion is put a bridle on spontaneous factor and action of humanity. 河源区水土流失受自然因素和人类不合理开发利用因素联合控制,但后者的作用更为重要,而且导致了河源新的危害性更大的水土流失类型。
- Soil erosion is a main contributor to water pollution. 土壤侵蚀是水污染的一个主要根源。
- 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。
- The relationship of stability factor K and circuit gain with parameters of RCL is also analyzed. 分析了在这两种方法中 ,稳定化因子 K以及电路增益与 RCL参数的关系。
- They decide to plant more trees to prevent soil erosion. 他们决定种更多的树以防土壤受侵蚀。
- Furthermore, the reuse factor K is defined to give support to weigh the rationality of detaching and designing the code segment of a code component. 并以重用因子K为标准,辅助衡量源码构件的代码片段划分和设计的合理性。
- Soil erosion was mitigated by the planting of trees. 植树造林减轻了土壤侵蚀。
- Any soil erosion or degradation problems? Prevention measures? 是否存在水土流失、土壤退化问题?防治措施。
- Under Tie-Line Bias Control (TBC) pattern, the area frequency modulation performance is affected directly by the value of frequency error factor k in area control error (ACE). 在TBC控制模式下,区域控制偏差(ACE)中频率偏差系数k的取值直接影响区域调频性能。
- Why do you think that agriculture can spend up soil erosion? 为什么农业会加速水土流失?
- However the value of the factor K(subscript ISCC) was acquired by experimental tests, so it was inconvenient and has not been widely used in engineering practice. 在实际工程中,由于临界应力强度因子门槛值K(下标ISCC)均通过实验方法来获取,给评定过程带来了一定困难且不便于推广应用。
- Influence of Overgrazing on Soil Erosion of Grassland. 过度放牧对草原土壤侵蚀的影响。
- The correlation between the SCG rate and the stress intensity factor K I can be expressed with the power law. (2) The dynamics parameters of the SCG determined f... 结果显示,钠钙玻璃的亚临界裂纹扩展无明显尺寸效应,缺口试件的疲劳强度与试件应力集中系数成反比。