Based on the feature of the wind speed, the forecasting models of wind speed in the aweather area of the firebreak tree belt had been established using the multi_model optimization.
根据风速的分布特征,采用多模型选优的方法,确定了山脊防火林带迎风面的相对风速预测模型。
Teri ties Kevin to a tree with a belt and with jumper cables.
泰瑞将凯文用皮带和跨接电缆捆绑在一棵树上。
Fault tree analysis (FTA) is applied to analyze the reliability of belt conveyor.
应用故障树法分析带式输送机的可靠性。
With the fault tree analysis method, the paper analyzes belt faults of the coal mining belt conveyor such as deviation, slipping, tear and breakage, focusing on the conveyor belt fire accident.
采用故障树分析法对煤矿井下带式输送机输送带的跑偏、打滑、撕裂、断带故障进行分析,重点对输送带着火事故进行分析。
The trajectory of umbrage motion shaped a butterfly arc belt. The situations of outside and inner arc belt were influenced by height of tree (H) and the height below branch respectively.
试验区树荫运动轨迹呈蝶形弧带变化,树高影响投影外弧线位置,枝下高影响投影内弧线位置;
Based on the survey from 32 belt-transects and 779 quadrats, it was found that slope, seed-tree, and shrub growth status are the main factors which affect natural regeneration on clear-cut sites.
通过对32个样带779个样方的调查,认为坡度、留母树否、灌木生长状况是影响皆伐后天然更新的主要因子。
Since 1976, we have determined the purification effects of air pollution by three structures, namely, forest-belt, hedgerow and scattered tree planted in Shaoxing Iron and Steel Factory.
自1976年以来,我们对绍兴钢铁厂设置的林带、绿篱、散生树三种结构的空气净化效应进行了测定研究。
Recent years has witnessed the success of establishing Pinus tabulaeformis tree-belt in purpose of wind-breaking and sand-fixing in this area.
为了有效地防风固沙,近些年在这里成功地营建了油松林带。
The density of the Pinus tree-belt at the dune site should be paid special attention to because soil water holding capacity was poorer at this substrate;
由于沙丘土壤的保水性差,即使在夏秋雨季也不能有效保持水分,因此,沙丘油松林带应注意密度控制。
The density of the Pinus tree-belt at the dune site should be paid special attention to because soil water holding capacity was poorer at this substrate;
由于沙丘土壤的保水性差,即使在夏秋雨季也不能有效保持水分,因此,沙丘油松林带应注意密度控制。
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