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forest surface
相关语句
  森林地表
     Study on Forest Surface Runoff Moving Law in Huangqian Reservoir Area
     黄前库区森林地表径流水移动规律的研究
短句来源
     Improvement of forest surface fire spread models.
     对两个森林地表火蔓延改进模型的研究
短句来源
     In this paper, a solid phase material fire experimental bed, which has more slope segments, has been used to simulate upslope forest surface fire.
     应用自行研制的“多坡段固相材料火蔓延实验台”,模拟森林地表火的蔓延过程,对变坡度情况下森林地表上坡火行为规律进行了实验研究。
短句来源
  “forest surface”译为未确定词的双语例句
     A PRELIMINARY STUDY ON THE RELATIONSHIP BETWEEN THE POLLEN PERCENTAGES IN FOREST SURFACE SAMPLES AND SURROUNDING VEGETATION ON WEST MOUNTAIN OF KUNMING,YUNNAN
     昆明西山林下表土中花粉与植被间数量关系的初步研究
短句来源
     Predicting Forest Surface Fuel Load by Using Forest Stand Factors
     利用林分特征因子预测森林地被可燃物载量的研究
短句来源
  相似匹配句对
     forest .
     林。
短句来源
     Study on the surface flow of forest
     林地地表径流的研究
短句来源
     Improvement of forest surface fire spread models.
     对两个森林地表火蔓延改进模型的研究
短句来源
     Smart Surface
     智能表面
短句来源
     The surface modification of C.
     系统地研究了单一和复配型表面活性剂的改性对C.
短句来源
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  forest surface
The role of sensible heat advection in maintaining largeQE over the forest surface is discussed.
      
Analysis of Proton Generation and Consumption of Forest Surface Soils in Hokkaido, Northern Japan
      
Organic Sulfur and the Retention of Nutrient Cations in Forest Surface Soils
      
Important methodological factors which should be considered when attempting to measure and interpret the effects of hot slash fires on the properties of forest surface soils are briefly discussed.
      
While the temporal series of disturbance can be determined, there is still uncertainty about the spatial limits of individual forest surface fires.
      
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In this paper, a solid phase material fire experimental bed, which has more slope segments, has been used to simulate upslope forest surface fire. It was found that there are three kinds of fire style corresponding different slope: Upon small slope, combustion is slow; on middle slope, flame will flicker; flame becomes very close to ground when slope is high. And fire behaviors are discontinuituy at the point where slope is changing. Based on the experimental data, an elementary law of fire behaviors upon...

In this paper, a solid phase material fire experimental bed, which has more slope segments, has been used to simulate upslope forest surface fire. It was found that there are three kinds of fire style corresponding different slope: Upon small slope, combustion is slow; on middle slope, flame will flicker; flame becomes very close to ground when slope is high. And fire behaviors are discontinuituy at the point where slope is changing. Based on the experimental data, an elementary law of fire behaviors upon changing slope has been achieved.

应用自行研制的“多坡段固相材料火蔓延实验台”,模拟森林地表火的蔓延过程,对变坡度情况下森林地表上坡火行为规律进行了实验研究。研究发现,上坡火火焰随坡度的变化有三种火焰类型,即小坡度的缓慢燃烧、随坡度增加的火焰的抖动以及大坡度时的贴壁剧烈燃烧。这三种燃烧方式之间的过渡,正是变坡度情况下火行为发生突变的地方。本文对突变情况下的数据进行处理和分析,得到了变坡度情况下火行为的初步规律。

Forest surface combustible is a important reason of arousing forest fire. Preventing forest fire is dependent on having load distribution of surface combustible in hand. But it is difficult to gain the load of forest surface combustible. So a set of model were set up between stand factors and load of every surface combustible by applying backward step by step multiple regression, and the result is satisfactory. So through stand factors, the load of every surface combustible may be calculated...

Forest surface combustible is a important reason of arousing forest fire. Preventing forest fire is dependent on having load distribution of surface combustible in hand. But it is difficult to gain the load of forest surface combustible. So a set of model were set up between stand factors and load of every surface combustible by applying backward step by step multiple regression, and the result is satisfactory. So through stand factors, the load of every surface combustible may be calculated by using the models.

森林地被可燃物是引起森林火灾的重要原因,掌握森林地被可燃物的载量分布,对森林火灾的预防有着十分重要的意义。但森林地被可燃物载量数据的获得是比较困难的,运用Spss11.0forwin dows统计软件系统,对兴安落叶松林和杨桦林的林分因子和各类地被可燃物载量进行后向逐步线性回归分析,建立了一套数学模型,取得了较为满意的结果,从而可以通过林分因子推算各类地被可燃物载量。

Using randomized block experiment design and variance analysis, multiple comparisons and regression analysis methods; the effects of the container-growing seedling were systematically analyzed. The results showed that the basal diameter, H/D, total fresh mass and under ground dry mass of container seedling presence significant difference; the difference of dry mass, under ground mass and aboveground fresh mass attained best significant level; the dry mass of phyllogen, activity of root system and soluble sugar...

Using randomized block experiment design and variance analysis, multiple comparisons and regression analysis methods; the effects of the container-growing seedling were systematically analyzed. The results showed that the basal diameter, H/D, total fresh mass and under ground dry mass of container seedling presence significant difference; the difference of dry mass, under ground mass and aboveground fresh mass attained best significant level; the dry mass of phyllogen, activity of root system and soluble sugar content also presence significant difference. The volume mass of the medium and the contents of total P and soluble P were major factors influencing seedling growth. Alkali-decomposed nitrogen in the medium was the major factor influencing the ratio of the aboveground and underground parts of the seedling. The recommended medium prescription is surface garden soil: yellow earth: pine-forest surface soil: decomposed manure: coal cinder(=40∶15∶20∶20∶5) for Chinese Pine. The best medium is: the texture is neutral, apparent density is 10 t·m~(-3), total P is 0.8 g·kg~(-1), soluble P is 90 mg·kg~(-1), soluble K is 260 mg·kg~(-1),alkali-decomposed nitrogen is 112 mg·kg~(-1), organic matter content is 3.4%.

采用随机区组试验设计,通过方差分析、多重比较及回归分析,研究不同配方基质性质与油松容器苗生长及生理特性的关系和对苗木生长的影响。结果表明:不同基质对油松容器苗的地径、高径比、单株鲜质量、地下干质量影响存在显著性差异,对苗木单株干质量、地上干质量、地上鲜质量的影响差异达极显著水平;不同基质的苗木在顶芽干质量、根系活力和体内碳水化合物含量上也存在明显差异;基质的密度、全磷和速效磷的含量是影响油松容器苗生长的主要因子;基质中碱解氮的含量是影响容器苗地上与地下部分比例关系的主要因子;在北方培育油松容器苗,基质配方以表土40%、黄色粘土15%、松林表土20%、腐熟粪肥20、炉灰渣5%的配方比例,质地为中壤土,密度10t·m-3,全磷含量达0.8g·kg-1,速效磷含量90mg·kg-1,速效钾含量260mg·kg-1,碱解氮含量112mg·kg-1,有机质含量34g·kg-1的微酸性土(pH=6.3)为佳。

 
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