助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   maximum density 在 林业 分类中 的翻译结果: 查询用时:0.062秒
图标索引 在分类学科中查询
所有学科
林业
公路与水路运输
数学
建筑科学与工程
生物学
一般化学工业
临床医学
特种医学
无机化工
更多类别查询

图标索引 历史查询
 

maximum density    
相关语句
  最大密度
    The gully density is 3-5 km/hm2, the maximum density reaches 7.4 km/hm2. The gully formation mainly attributes to the landform characteristics, the quality of geological stratification, the climate characteristics, and the surface structure of soil and the factor of anthropic activity in this region.
    系统内冲沟的密度为3-5 km/hm2,最大密度达到7.4 km/hm2。 冲沟的形成主要与该地域的地貌特征、地层质地、气候特点、土壤表层结构等因素有关。
    Arbor was the dominant species, with a maximum density of 1975/hm~2.Phanerophytes were the largest in all species and therophytes were in the middle.
    乔木树种占主导地位,植株最大密度为1975株/hm~2;
短句来源
    The equation ,M_(?) =A_1·N_(?) ~(-B_1) ,was used for maximum density curves.
    最大密度线选用M_m=A_i·N_m~(-B_1)式;
短句来源
    In this paper, the formula of Peak width at half hight(PAH) is used to study the reasonable density about the high yield Chinese fir Plantation, The results show there are remarkable difference between the reasonable density of Maximum Density Model and the density of Maximum Density Line Model.
    本文应用半峰宽原理探讨高产杉木林分的合理密度.结果表明,最大密度模型与最大密度线模型的林分合理密度经t检验存在显著差异;
短句来源
    The precipitation in July was positively correlated with ring width with a coefficient of 0.69, the significant level is 0.01. The precipitation in August was positively correlated with ring density, maximum density and minimum density with the coefficients of 0.70, 0.74 and 0.74 respectively in the level of 0.01.
    而 7月份降水量与年轮宽度呈 0 .6 9的正相关 ,在 0 .0 1水平相关显著。 8月份降水量与年轮密度、最大密度和最小密度呈 0 .70、0 .74和 0 .74的正相关关系 ,在 0 .0 1水平相关显著。
短句来源
更多       
  大密度
    The gully density is 3-5 km/hm2, the maximum density reaches 7.4 km/hm2. The gully formation mainly attributes to the landform characteristics, the quality of geological stratification, the climate characteristics, and the surface structure of soil and the factor of anthropic activity in this region.
    系统内冲沟的密度为3-5 km/hm2,最大密度达到7.4 km/hm2。 冲沟的形成主要与该地域的地貌特征、地层质地、气候特点、土壤表层结构等因素有关。
    Arbor was the dominant species, with a maximum density of 1975/hm~2.Phanerophytes were the largest in all species and therophytes were in the middle.
    乔木树种占主导地位,植株最大密度为1975株/hm~2;
短句来源
    The equation ,M_(?) =A_1·N_(?) ~(-B_1) ,was used for maximum density curves.
    最大密度线选用M_m=A_i·N_m~(-B_1)式;
短句来源
    In this paper, the formula of Peak width at half hight(PAH) is used to study the reasonable density about the high yield Chinese fir Plantation, The results show there are remarkable difference between the reasonable density of Maximum Density Model and the density of Maximum Density Line Model.
    本文应用半峰宽原理探讨高产杉木林分的合理密度.结果表明,最大密度模型与最大密度线模型的林分合理密度经t检验存在显著差异;
短句来源
    The precipitation in July was positively correlated with ring width with a coefficient of 0.69, the significant level is 0.01. The precipitation in August was positively correlated with ring density, maximum density and minimum density with the coefficients of 0.70, 0.74 and 0.74 respectively in the level of 0.01.
    而 7月份降水量与年轮宽度呈 0 .6 9的正相关 ,在 0 .0 1水平相关显著。 8月份降水量与年轮密度、最大密度和最小密度呈 0 .70、0 .74和 0 .74的正相关关系 ,在 0 .0 1水平相关显著。
短句来源
更多       
  最大密度
    The gully density is 3-5 km/hm2, the maximum density reaches 7.4 km/hm2. The gully formation mainly attributes to the landform characteristics, the quality of geological stratification, the climate characteristics, and the surface structure of soil and the factor of anthropic activity in this region.
    系统内冲沟的密度为3-5 km/hm2,最大密度达到7.4 km/hm2。 冲沟的形成主要与该地域的地貌特征、地层质地、气候特点、土壤表层结构等因素有关。
    Arbor was the dominant species, with a maximum density of 1975/hm~2.Phanerophytes were the largest in all species and therophytes were in the middle.
    乔木树种占主导地位,植株最大密度为1975株/hm~2;
短句来源
    The equation ,M_(?) =A_1·N_(?) ~(-B_1) ,was used for maximum density curves.
    最大密度线选用M_m=A_i·N_m~(-B_1)式;
短句来源
    In this paper, the formula of Peak width at half hight(PAH) is used to study the reasonable density about the high yield Chinese fir Plantation, The results show there are remarkable difference between the reasonable density of Maximum Density Model and the density of Maximum Density Line Model.
    本文应用半峰宽原理探讨高产杉木林分的合理密度.结果表明,最大密度模型与最大密度线模型的林分合理密度经t检验存在显著差异;
短句来源
    The precipitation in July was positively correlated with ring width with a coefficient of 0.69, the significant level is 0.01. The precipitation in August was positively correlated with ring density, maximum density and minimum density with the coefficients of 0.70, 0.74 and 0.74 respectively in the level of 0.01.
    而 7月份降水量与年轮宽度呈 0 .6 9的正相关 ,在 0 .0 1水平相关显著。 8月份降水量与年轮密度、最大密度和最小密度呈 0 .70、0 .74和 0 .74的正相关关系 ,在 0 .0 1水平相关显著。
短句来源
更多       
查询“maximum density”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  maximum density
Minimal species diversity (3 species) and maximum density of organisms were noted in the driest habitat.
      
The catalytic activity of the test samples in the oxidation of CO changed nonmonotonically with x, and it was maximum at x = 0.5-0.6, which correlates with the maximum density of interphase boundaries in these samples.
      
The maximum density of denitrifying bacteria was recorded in the upper sediment horizons and was 104 cells/g of wet ground.
      
The maximum density (11 million cell/liter) was registered at the water surface after heavy rainfall.
      
The maximum density and biomass of phytoplankton were observed in summer, fall, and winter.
      
更多          


Mathematical graphs are used to represent the digitizing relations and dynamic laws between the stand density and other measuration factors in order to adjust the stand density appropriately. In accordance with the differences of the distribution, site and origin of Black locust (Robinia pseudoacacia Linn. ) stands in all of Liaoning Province, the standardized densiW control diagrams were made from 1983 to 1985. In the diagrams, the standardized density control curves were made by the equations which were fitted...

Mathematical graphs are used to represent the digitizing relations and dynamic laws between the stand density and other measuration factors in order to adjust the stand density appropriately. In accordance with the differences of the distribution, site and origin of Black locust (Robinia pseudoacacia Linn. ) stands in all of Liaoning Province, the standardized densiW control diagrams were made from 1983 to 1985. In the diagrams, the standardized density control curves were made by the equations which were fitted by the maximum density—volume data obtained from the materials in the experiment stands for tending felling. The equation ,M_(?)=A_1·N_(?)~(-B_1) ,was used for maximum density curves. The equations, M~(-1)=A_1+B_1·N~(-1) and M~(-1)=A_2+B_2·N~(-1), were used for equivalent diameter and height CurVes respectively, and M=A_1·(B_1+1)·[B_1/(B_1+1)]~(-B_1)·(1-N/N_0)·N~(-B_1) for natural thinning curves, as well as M_(?)=P·M_(?) for equivalent stocking density curves. The accuracy of the diagrams is very high, 95.4% for equivalent height curves and 93.4% for equivalent diameter curves.

为了利用数学图象来表达林分密度与林分其它测树因子间的数量关系及其动态规律,适时适量地调整林分密度,于1983—1985年,根据全省刺槐(Robinia Pseudoacacia Linn)林的分布、立地及起源的不同,分别编制了林分密度管理图共九份。图中的标准密度管理线,是利用抚育间伐定位试验地,观测数据中产量最高的密度—蓄积(ha)数据拟合方程而成;最大密度线选用M_m=A_i·N_m~(-B_1)式;等树高线和等直径线选用M~(-1)=A_1+B_1·N~(-1)及式M~(-1)=A_2+B_2·N~(-1);自然稀疏线选用M=[A_i·(B_1+1)·(B_1/(B_1+1))~(-B_1)]·[1-N/N_0]·N~(-B_1)式;密度管理线选用M_p=P·M_m式。该密度管理图精度,等树高线为95.4%,等直等径线为93.4%。

This paper deals with the effectiveness of H-HA models, D-H models and maximum density-D models of Chinese fir and Masson pine, making use of computerized simulation tests. The results showed that the simulation test precisions of the models reached up 99.0%, and P {R>R*}> 85.0%. The population correlation coefficients and the forecasting effectiveness of the models were satisfactory.

用计算机模拟试验的方法,对杉木和马尾松平均树高、平均胸径及最大密度的数学模型的预报有效性进行检验。结果表明:各模型的模拟检验精度均达到99.0%以上,并且P{R>R}>85.0%。可认为各模型的总体相关系数及其预报效果是理想的。

In this paper, the formula of Peak width at half hight(PAH) is used to study the reasonable density about the high yield Chinese fir Plantation, The results show there are remarkable difference between the reasonable density of Maximum Density Model and the density of Maximum Density Line Model. And there are remarkable regression relationships between mean DBH of the stands and density of the stands, between stands volume about the mean individal and density of stands....

In this paper, the formula of Peak width at half hight(PAH) is used to study the reasonable density about the high yield Chinese fir Plantation, The results show there are remarkable difference between the reasonable density of Maximum Density Model and the density of Maximum Density Line Model. And there are remarkable regression relationships between mean DBH of the stands and density of the stands, between stands volume about the mean individal and density of stands. The weighted average reasonable density about high wild Chinese fir plantation is 0. 56~0. 90, that is to say that the ressonable density is from 0' 56Nmax to 0. 90Nmax, which will provide the scientific basis for stand density for management and control to high yield Chinese fir plantation.

本文应用半峰宽原理探讨高产杉木林分的合理密度.结果表明,最大密度模型与最大密度线模型的林分合理密度经t检验存在显著差异;林分平均胸径及林分平均单株材积与林分密度存在显著回归关系.高产杉木林分合理密度经加权确定其范围为0.56~0.90,即合理密度在0.56N_(max)~0.90N_(max)之间.林分合理密度可为高产杉木人工林林分密度管理和控制提供科学的理论依据.

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关maximum density的内容
在知识搜索中查有关maximum density的内容
在数字搜索中查有关maximum density的内容
在概念知识元中查有关maximum density的内容
在学术趋势中查有关maximum density的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社